diff --git a/package.json b/package.json
index e2a6ce51..08476539 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,7 @@
     "@mui/icons-material": "6.3.0",
     "@mui/material": "6.3.0",
     "@mui/system": "6.3.0",
+    "@mui/utils": "^6.4.0",
     "@mui/x-date-pickers": "7.23.3",
     "apollo-upload-client": "18.0.1",
     "csstype": "3.1.3",
diff --git a/public/locales/en.json b/public/locales/en.json
index 6c92faf8..b335f7c6 100644
--- a/public/locales/en.json
+++ b/public/locales/en.json
@@ -1034,10 +1034,7 @@
               "invalid_json": "Invalid json",
               "invalid_name": "The theme name must be unique and has a limit of 16 characters"
             },
-            "info": {
-              "creating_theme": "Create a custom theme with the <2>MUI Theme Creator</2>, copy everything after \"themeOptions\" from \"{\" to \"}\" and paste it into the \"theme\" text field.",
-              "theme_mode_lock": "In case \"mode\" or \"type\" is defined in the \"palette\" object, the theme will be locked into this mode and will not change regardless of the selected apps theme mode"
-            },
+            "description": "See the official <0>MUI documentation</0> for how to customize the theme.\nThe palette API is not supported, you have to use the new <1>color schemes API</1>.\n\nYou can use theme creators like <2>MUI Theme Creator</2>, however, you have to adjust the created object according to the new color schemes API.\n\nIn case no background is defined, a background will be calculated based on the primary color",
             "theme_name": "Name"
           },
           "failure": "Could not create theme",
diff --git a/src/lib/mui/MuiStyles.types.d.ts b/src/lib/mui/MuiStyles.types.d.ts
new file mode 100644
index 00000000..d5a94c31
--- /dev/null
+++ b/src/lib/mui/MuiStyles.types.d.ts
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import '@mui/material/styles';
+
+declare module '@mui/material/styles' {
+    interface CssThemeVariables {
+        enabled: true;
+    }
+}
diff --git a/src/lib/storage/AppStorage.ts b/src/lib/storage/AppStorage.ts
index 52eb51c3..f40746a4 100644
--- a/src/lib/storage/AppStorage.ts
+++ b/src/lib/storage/AppStorage.ts
@@ -26,7 +26,9 @@ export class Storage {
         return this.parseValue(this.getItem(key), defaultValue);
     }
 
-    setItem(key: string, value: unknown, emitEvent: boolean = true): void {
+    setItem(key: string, value: unknown, emitEvent: boolean = true, stringify: boolean = true): void {
+        const currentValue = this.getItem(key);
+
         const fireEvent = (valueToStore: string | undefined) => {
             if (!emitEvent) {
                 return;
@@ -35,7 +37,7 @@ export class Storage {
             window.dispatchEvent(
                 new StorageEvent('storage', {
                     key,
-                    oldValue: this.getItem(key),
+                    oldValue: currentValue,
                     newValue: valueToStore,
                 }),
             );
@@ -47,10 +49,10 @@ export class Storage {
             return;
         }
 
-        const valueToStore = JSON.stringify(value);
+        const valueToStore = stringify ? JSON.stringify(value) : value;
 
-        this.storage.setItem(key, valueToStore);
-        fireEvent(valueToStore);
+        this.storage.setItem(key, valueToStore as string);
+        fireEvent(valueToStore as string);
     }
 }
 
diff --git a/src/modules/core/contexts/AppContext.tsx b/src/modules/core/contexts/AppContext.tsx
index 93ed7bf5..bc0646ed 100644
--- a/src/modules/core/contexts/AppContext.tsx
+++ b/src/modules/core/contexts/AppContext.tsx
@@ -6,7 +6,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-import { Direction, StyledEngineProvider, ThemeProvider } from '@mui/material/styles';
+import { Direction, StyledEngineProvider, ThemeProvider, useColorScheme } from '@mui/material/styles';
 import React, { useLayoutEffect, useMemo, useRef, useState } from 'react';
 import { BrowserRouter as Router } from 'react-router-dom';
 import { QueryParamProvider } from 'use-query-params';
@@ -58,6 +58,9 @@ export const AppContext: React.FC<Props> = ({ children }) => {
     const [themeMode, setThemeMode] = useLocalStorage<ThemeMode>('themeMode', ThemeMode.SYSTEM);
     const [pureBlackMode, setPureBlackMode] = useLocalStorage<boolean>('pureBlackMode', false);
 
+    const { mode } = useColorScheme();
+    const actualThemeMode = mode ?? themeMode ?? 'dark';
+
     const darkThemeContext = useMemo(
         () => ({
             appTheme,
@@ -71,8 +74,14 @@ export const AppContext: React.FC<Props> = ({ children }) => {
     );
 
     const theme = useMemo(
-        () => createAndSetTheme(themeMode, getTheme(appTheme, customThemes), pureBlackMode, currentDirection),
-        [themeMode, currentDirection, systemThemeMode, pureBlackMode, appTheme, customThemes],
+        () =>
+            createAndSetTheme(
+                actualThemeMode as ThemeMode,
+                getTheme(appTheme, customThemes),
+                pureBlackMode,
+                currentDirection,
+            ),
+        [actualThemeMode, currentDirection, systemThemeMode, pureBlackMode, appTheme, customThemes],
     );
 
     return (
diff --git a/src/modules/core/utils/MediaQuery.tsx b/src/modules/core/utils/MediaQuery.tsx
index 52975b7d..ca97436d 100644
--- a/src/modules/core/utils/MediaQuery.tsx
+++ b/src/modules/core/utils/MediaQuery.tsx
@@ -85,7 +85,7 @@ export class MediaQuery {
     }
 
     static getThemeMode(): Exclude<ThemeMode, 'system'> {
-        const themeMode = AppStorage.local.getItemParsed<ThemeMode>('themeMode', ThemeMode.SYSTEM);
+        const themeMode = AppStorage.local.getItem('mui-mode') as ThemeMode;
 
         const isSystemMode = themeMode === ThemeMode.SYSTEM;
         if (isSystemMode) {
diff --git a/src/modules/settings/screens/Appearance.tsx b/src/modules/settings/screens/Appearance.tsx
index fe4c1e66..38800e2b 100644
--- a/src/modules/settings/screens/Appearance.tsx
+++ b/src/modules/settings/screens/Appearance.tsx
@@ -15,6 +15,7 @@ import MenuItem from '@mui/material/MenuItem';
 import ListSubheader from '@mui/material/ListSubheader';
 import Switch from '@mui/material/Switch';
 import Link from '@mui/material/Link';
+import { useColorScheme } from '@mui/material/styles';
 import { NavBarContext } from '@/modules/navigation-bar/contexts/NavbarContext.tsx';
 import { ThemeMode, ThemeModeContext } from '@/modules/theme/contexts/ThemeModeContext.tsx';
 import { Select } from '@/modules/core/components/inputs/Select.tsx';
@@ -23,7 +24,6 @@ import { NumberSetting } from '@/modules/core/components/settings/NumberSetting.
 import { useLocalStorage } from '@/modules/core/hooks/useStorage.tsx';
 import { I18nResourceCode, i18nResources } from '@/i18n';
 import { langCodeToName } from '@/modules/core/utils/Languages.ts';
-import { getTheme } from '@/modules/theme/services/AppThemes.ts';
 import { ThemeList } from '@/modules/theme/components/ThemeList.tsx';
 import {
     createUpdateMetadataServerSettings,
@@ -35,10 +35,13 @@ import { defaultPromiseErrorHandler } from '@/lib/DefaultPromiseErrorHandler.ts'
 import { makeToast } from '@/modules/core/utils/Toast.ts';
 import { MetadataThemeSettings } from '@/modules/theme/AppTheme.types.ts';
 import { getErrorMessage } from '@/lib/HelperFunctions.ts';
+import { AppStorage } from '@/lib/storage/AppStorage.ts';
 
 export const Appearance = () => {
     const { t, i18n } = useTranslation();
-    const { themeMode, setThemeMode, pureBlackMode, setPureBlackMode, appTheme } = useContext(ThemeModeContext);
+    const { themeMode, setThemeMode, pureBlackMode, setPureBlackMode } = useContext(ThemeModeContext);
+    const { mode, setMode } = useColorScheme();
+    const actualThemeMode = (mode ?? themeMode) as ThemeMode;
 
     const { setTitle, setAction } = useContext(NavBarContext);
     useLayoutEffect(() => {
@@ -59,8 +62,7 @@ export const Appearance = () => {
         makeToast(t('global.error.label.failed_to_save_changes'), 'error', getErrorMessage(e)),
     );
 
-    const isDarkMode =
-        getTheme(appTheme).muiTheme.palette?.mode === 'dark' || MediaQuery.getThemeMode() === ThemeMode.DARK;
+    const isDarkMode = MediaQuery.getThemeMode() === ThemeMode.DARK;
 
     const DEFAULT_ITEM_WIDTH = 300;
     const [itemWidth, setItemWidth] = useLocalStorage<number>('ItemWidth', DEFAULT_ITEM_WIDTH);
@@ -89,7 +91,17 @@ export const Appearance = () => {
         >
             <ListItem>
                 <ListItemText primary={t('settings.appearance.theme.mode')} />
-                <Select<ThemeMode> value={themeMode} onChange={(e) => setThemeMode(e.target.value as ThemeMode)}>
+                <Select<ThemeMode>
+                    value={actualThemeMode}
+                    onChange={(e) => {
+                        const newMode = e.target.value as 'system' | 'light' | 'dark';
+
+                        setThemeMode(newMode as ThemeMode);
+                        setMode(newMode);
+                        // in case a non "colorSchemes" mui theme is active, "setMode" does not update the mode ("mui-mode") value
+                        AppStorage.local.setItem('mui-mode', newMode, true, false);
+                    }}
+                >
                     <MenuItem key={ThemeMode.SYSTEM} value={ThemeMode.SYSTEM}>
                         System
                     </MenuItem>
diff --git a/src/modules/theme/Themes.ts b/src/modules/theme/Themes.ts
index 87655930..07db4628 100644
--- a/src/modules/theme/Themes.ts
+++ b/src/modules/theme/Themes.ts
@@ -6,22 +6,40 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-import { ThemeOptions } from '@mui/material/styles';
+import { CssVarsThemeOptions } from '@mui/material/styles';
 import { t as translate } from 'i18next';
 
-export type TBaseTheme = { isCustom: boolean; getName: () => string; muiTheme: ThemeOptions };
+export type TBaseTheme = {
+    isCustom: boolean;
+    getName: () => string;
+    muiTheme: Omit<CssVarsThemeOptions, 'activeMode'>;
+};
 
 export const themes = {
     default: {
         isCustom: false,
         getName: () => translate('global.label.default'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#5b74ef',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#5b74ef',
+                        },
+                        secondary: {
+                            main: '#efd65b',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#efd65b',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#5b74ef',
+                        },
+                        secondary: {
+                            main: '#efd65b',
+                        },
+                    },
                 },
             },
         },
@@ -30,12 +48,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.lavender'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#5c58dc',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#5c58dc',
+                        },
+                        secondary: {
+                            main: '#d8dc58',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#d8dc58',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#5c58dc',
+                        },
+                        secondary: {
+                            main: '#d8dc58',
+                        },
+                    },
                 },
             },
         },
@@ -44,12 +76,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.dune'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#897869',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#897869',
+                        },
+                        secondary: {
+                            main: '#697a89',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#697a89',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#897869',
+                        },
+                        secondary: {
+                            main: '#697a89',
+                        },
+                    },
                 },
             },
         },
@@ -58,12 +104,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.rosegold'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#E9A7A1',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#E9A7A1',
+                        },
+                        secondary: {
+                            main: '#A1E3E9',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#A1E3E9',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#E9A7A1',
+                        },
+                        secondary: {
+                            main: '#A1E3E9',
+                        },
+                    },
                 },
             },
         },
@@ -72,12 +132,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.forest_dew'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#53a584',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#53a584',
+                        },
+                        secondary: {
+                            main: '#a55374',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#a55374',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#53a584',
+                        },
+                        secondary: {
+                            main: '#a55374',
+                        },
+                    },
                 },
             },
         },
@@ -86,12 +160,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.mountain_sunset'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#c55a77',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#c55a77',
+                        },
+                        secondary: {
+                            main: '#5ac5a8',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#5ac5a8',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#c55a77',
+                        },
+                        secondary: {
+                            main: '#5ac5a8',
+                        },
+                    },
                 },
             },
         },
@@ -100,12 +188,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.crimson'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#DC143C',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#DC143C',
+                        },
+                        secondary: {
+                            main: '#14DCB4',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#14DCB4',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#DC143C',
+                        },
+                        secondary: {
+                            main: '#14DCB4',
+                        },
+                    },
                 },
             },
         },
@@ -114,12 +216,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.minty_miracles'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#5CE6A1',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#5CE6A1',
+                        },
+                        secondary: {
+                            main: '#E65CA1',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#E65CA1',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#5CE6A1',
+                        },
+                        secondary: {
+                            main: '#E65CA1',
+                        },
+                    },
                 },
             },
         },
@@ -128,12 +244,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.orange_juice'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#ffb546',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#ffb546',
+                        },
+                        secondary: {
+                            main: '#4690ff',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#4690ff',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#ffb546',
+                        },
+                        secondary: {
+                            main: '#4690ff',
+                        },
+                    },
                 },
             },
         },
@@ -142,12 +272,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.bright_pink'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#FF007F',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#FF007F',
+                        },
+                        secondary: {
+                            main: '#00FF80',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#00FF80',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#FF007F',
+                        },
+                        secondary: {
+                            main: '#00FF80',
+                        },
+                    },
                 },
             },
         },
@@ -156,12 +300,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.veronica'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#A020F0',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#A020F0',
+                        },
+                        secondary: {
+                            main: '#70F020',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#70F020',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#A020F0',
+                        },
+                        secondary: {
+                            main: '#70F020',
+                        },
+                    },
                 },
             },
         },
@@ -170,12 +328,26 @@ export const themes = {
         isCustom: false,
         getName: () => translate('settings.appearance.theme.themes.tree_frog_green'),
         muiTheme: {
-            palette: {
-                primary: {
-                    main: '#8ace31',
+            colorSchemes: {
+                light: {
+                    palette: {
+                        primary: {
+                            main: '#8ace31',
+                        },
+                        secondary: {
+                            main: '#7531CE',
+                        },
+                    },
                 },
-                secondary: {
-                    main: '#7531CE',
+                dark: {
+                    palette: {
+                        primary: {
+                            main: '#8ace31',
+                        },
+                        secondary: {
+                            main: '#7531CE',
+                        },
+                    },
                 },
             },
         },
diff --git a/src/modules/theme/components/CreateThemeDialog.tsx b/src/modules/theme/components/CreateThemeDialog.tsx
index 8e8e6751..e01cd935 100644
--- a/src/modules/theme/components/CreateThemeDialog.tsx
+++ b/src/modules/theme/components/CreateThemeDialog.tsx
@@ -37,12 +37,26 @@ const baseCustomTheme: AppTheme = {
     isCustom: true,
     getName: () => '',
     muiTheme: {
-        palette: {
-            primary: {
-                main: '#1976d2',
+        colorSchemes: {
+            light: {
+                palette: {
+                    primary: {
+                        main: '#1976d2',
+                    },
+                    secondary: {
+                        main: '#9c27b0',
+                    },
+                },
             },
-            secondary: {
-                main: '#9c27b0',
+            dark: {
+                palette: {
+                    primary: {
+                        main: '#1976d2',
+                    },
+                    secondary: {
+                        main: '#9c27b0',
+                    },
+                },
             },
         },
     },
@@ -115,10 +129,23 @@ export const ThemeCreationDialog = ({
                     />
                 )}
                 {!error && (
-                    <Stack sx={{ gap: 2 }}>
+                    <Stack sx={{ gap: 2, whiteSpace: 'pre-line' }}>
                         <Typography>
-                            <Trans i18nKey="settings.appearance.theme.create.dialog.info.creating_theme">
-                                Create a custom theme with the{' '}
+                            <Trans i18nKey="settings.appearance.theme.create.dialog.description">
+                                <Link
+                                    href="https://mui.com/material-ui/customization/how-to-customize/"
+                                    target="_blank"
+                                    rel="noreferrer"
+                                >
+                                    MUI documentation
+                                </Link>
+                                <Link
+                                    href="https://mui.com/material-ui/customization/palette/#color-schemes"
+                                    target="_blank"
+                                    rel="noreferrer"
+                                >
+                                    MUI documentation
+                                </Link>
                                 <Link
                                     href="https://zenoo.github.io/mui-theme-creator/"
                                     target="_blank"
@@ -130,7 +157,6 @@ export const ThemeCreationDialog = ({
                                 &quot; and paste it into the &quot;theme&quot; text field.
                             </Trans>
                         </Typography>
-                        <Typography>{t('settings.appearance.theme.create.dialog.info.theme_mode_lock')}</Typography>
                         <TextField
                             disabled={mode === 'edit'}
                             label={t('settings.appearance.theme.create.dialog.theme_name')}
diff --git a/src/modules/theme/components/ThemeList.tsx b/src/modules/theme/components/ThemeList.tsx
index 9c46cb98..86d1ad0f 100644
--- a/src/modules/theme/components/ThemeList.tsx
+++ b/src/modules/theme/components/ThemeList.tsx
@@ -68,7 +68,7 @@ export const ThemeList = () => {
             {allThemes.map((theme) => (
                 <ThemePreview
                     key={theme.id}
-                    theme={theme}
+                    appTheme={theme}
                     onDelete={() => {
                         makeToast(t('settings.appearance.theme.delete.action', { theme: theme.getName() }), 'info');
                         updateCustomThemes(
diff --git a/src/modules/theme/components/ThemePreview.tsx b/src/modules/theme/components/ThemePreview.tsx
index 88c63860..6ecbddf5 100644
--- a/src/modules/theme/components/ThemePreview.tsx
+++ b/src/modules/theme/components/ThemePreview.tsx
@@ -10,7 +10,7 @@ import { useTranslation } from 'react-i18next';
 import { useContext, useMemo } from 'react';
 import Box from '@mui/material/Box';
 import Stack from '@mui/material/Stack';
-import { styled, ThemeProvider } from '@mui/material/styles';
+import { styled, ThemeProvider, useTheme } from '@mui/material/styles';
 import CheckCircleIcon from '@mui/icons-material/CheckCircle';
 import Card from '@mui/material/Card';
 import CardActionArea from '@mui/material/CardActionArea';
@@ -32,17 +32,21 @@ const ThemePreviewBadge = styled(Box)(() => ({
     height: '20px',
 }));
 
-export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: () => void }) => {
-    const { getName } = theme;
+export const ThemePreview = ({ appTheme, onDelete }: { appTheme: AppTheme; onDelete: () => void }) => {
+    const { getName } = appTheme;
 
     const { t } = useTranslation();
-    const { themeMode, setAppTheme, appTheme, pureBlackMode } = useContext(ThemeModeContext);
+    const theme = useTheme();
+    const { themeMode, setAppTheme, appTheme: activeAppTheme, pureBlackMode } = useContext(ThemeModeContext);
 
-    const popupState = usePopupState({ variant: 'popover', popupId: `theme-edit-dialog-${theme.id}` });
+    const popupState = usePopupState({ variant: 'popover', popupId: `theme-edit-dialog-${appTheme.id}` });
 
-    const isSelected = theme.id === appTheme;
+    const isSelected = appTheme.id === activeAppTheme;
 
-    const muiTheme = useMemo(() => createTheme(themeMode, theme, pureBlackMode), [theme, themeMode, pureBlackMode]);
+    const muiTheme = useMemo(
+        () => createTheme(themeMode, appTheme, pureBlackMode),
+        [appTheme, themeMode, pureBlackMode],
+    );
 
     return (
         <>
@@ -71,12 +75,15 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                                 bottom: 0,
                                 left: 0,
                                 border: '4px solid',
-                                borderColor: isSelected
-                                    ? muiTheme.palette.primary.light
-                                    : muiTheme.palette.background.paper,
+                                borderColor: isSelected ? muiTheme.palette.primary.light : muiTheme.palette.grey['100'],
                                 zIndex: 1,
                                 pointerEvents: 'none',
                                 borderRadius: 1,
+                                ...theme.applyStyles('dark', {
+                                    borderColor: isSelected
+                                        ? muiTheme.palette.primary.light
+                                        : muiTheme.palette.grey['900'],
+                                }),
                             }}
                         />
                         <CardActionArea
@@ -85,15 +92,15 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                                 backgroundColor: 'background.default',
                             }}
                             onClick={() => {
-                                const needToLoadFonts = hasMissingFonts(theme.muiTheme);
+                                const needToLoadFonts = hasMissingFonts(appTheme.muiTheme);
                                 if (!needToLoadFonts) {
-                                    setAppTheme(theme.id);
+                                    setAppTheme(appTheme.id);
                                     return;
                                 }
 
                                 makeToast(t('settings.appearance.theme.select.fonts.loading'), 'info');
-                                loadThemeFonts(theme.muiTheme)
-                                    .then(() => setAppTheme(theme.id))
+                                loadThemeFonts(appTheme.muiTheme)
+                                    .then(() => setAppTheme(appTheme.id))
                                     .catch((e) =>
                                         makeToast(
                                             t('settings.appearance.theme.select.fonts.error'),
@@ -136,7 +143,7 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                                                     }}
                                                 />
                                             )}
-                                            {!isSelected && theme.isCustom && (
+                                            {!isSelected && appTheme.isCustom && (
                                                 <IconButton
                                                     onClick={(e) => {
                                                         e.preventDefault();
@@ -152,7 +159,7 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                                                     </Tooltip>
                                                 </IconButton>
                                             )}
-                                            {theme.isCustom && (
+                                            {appTheme.isCustom && (
                                                 <IconButton
                                                     onClick={(e) => {
                                                         e.preventDefault();
@@ -194,7 +201,7 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                                 <Stack
                                     sx={{
                                         height: '25%',
-                                        backgroundColor: muiTheme.palette.background.paper,
+                                        backgroundColor: 'background.paper',
                                         alignItems: 'center',
                                         flexDirection: 'row',
                                         gap: 2,
@@ -226,7 +233,7 @@ export const ThemePreview = ({ theme, onDelete }: { theme: AppTheme; onDelete: (
                     <TypographyMaxLines sx={{ maxWidth: '100%' }}>{getName()}</TypographyMaxLines>
                 </Tooltip>
             </Stack>
-            <ThemeCreationDialog bindDialogProps={bindDialog(popupState)} mode="edit" appTheme={theme} />
+            <ThemeCreationDialog bindDialogProps={bindDialog(popupState)} mode="edit" appTheme={appTheme} />
         </>
     );
 };
diff --git a/src/modules/theme/services/AppThemes.ts b/src/modules/theme/services/AppThemes.ts
index 2742c656..a6c375a5 100644
--- a/src/modules/theme/services/AppThemes.ts
+++ b/src/modules/theme/services/AppThemes.ts
@@ -6,7 +6,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-import { ThemeOptions } from '@mui/material/styles';
+import { CssVarsThemeOptions } from '@mui/material/styles';
 import WebFont from 'webfontloader';
 import { defaultPromiseErrorHandler } from '@/lib/DefaultPromiseErrorHandler.ts';
 import { ControlledPromise } from '@/lib/ControlledPromise.ts';
@@ -66,12 +66,12 @@ const getFontsFromTheme = (obj: Record<string, any>, fonts: string[] = []): stri
 
 const loadedFonts: string[] = [];
 
-export const hasMissingFonts = (theme: ThemeOptions): boolean => {
+export const hasMissingFonts = (theme: CssVarsThemeOptions): boolean => {
     const themeFonts = getFontsFromTheme(theme.typography ?? {});
     return !!themeFonts.length && themeFonts.some((font) => !loadedFonts.includes(font));
 };
 
-export const loadThemeFonts = async (theme: ThemeOptions): Promise<void> => {
+export const loadThemeFonts = async (theme: CssVarsThemeOptions): Promise<void> => {
     const themeFonts = getFontsFromTheme(theme.typography ?? {});
     const missingThemeFonts = themeFonts.filter((font) => !loadedFonts.includes(font));
 
diff --git a/src/modules/theme/services/ThemeCreator.ts b/src/modules/theme/services/ThemeCreator.ts
index a2abdbba..b1d78473 100644
--- a/src/modules/theme/services/ThemeCreator.ts
+++ b/src/modules/theme/services/ThemeCreator.ts
@@ -11,12 +11,16 @@ import {
     darken,
     Direction,
     lighten,
-    Palette,
     responsiveFontSizes,
     Theme,
+    TypeBackground,
     useTheme,
 } from '@mui/material/styles';
 import { useCallback } from 'react';
+// eslint-disable-next-line import/no-extraneous-dependencies,no-restricted-imports
+import { deepmerge } from '@mui/utils';
+// eslint-disable-next-line no-restricted-imports
+import { PaletteBackgroundChannel } from '@mui/material/styles/createThemeWithVars';
 import { ThemeMode } from '@/modules/theme/contexts/ThemeModeContext.tsx';
 import { MediaQuery } from '@/modules/core/utils/MediaQuery.tsx';
 import { AppTheme, loadThemeFonts } from '@/modules/theme/services/AppThemes.ts';
@@ -25,6 +29,56 @@ import { applyStyles } from '@/modules/core/utils/ApplyStyles.ts';
 
 const SCROLLBAR_SIZE = 14;
 
+declare module '@mui/material/styles' {
+    interface CssThemeVariables {
+        enabled: true;
+    }
+}
+
+const getBackgroundColor = (
+    type: 'light' | 'dark',
+    appTheme: AppTheme,
+    theme: Theme,
+    setPureBlackMode: boolean = false,
+): (Partial<TypeBackground> & Partial<PaletteBackgroundChannel>) | undefined => {
+    if (setPureBlackMode) {
+        return {
+            paper: '#111',
+            default: '#000',
+        };
+    }
+
+    if (type === 'light' && !!theme.colorSchemes.light) {
+        if (
+            typeof appTheme.muiTheme.colorSchemes?.light === 'object' &&
+            appTheme.muiTheme.colorSchemes.light.palette?.background
+        ) {
+            return appTheme.muiTheme.colorSchemes.light.palette.background;
+        }
+
+        return {
+            paper: lighten(theme.colorSchemes.light.palette.primary.dark, 0.8),
+            default: lighten(theme.colorSchemes.light.palette.primary.dark, 0.9),
+        };
+    }
+
+    if (type === 'dark' && !!theme.colorSchemes.dark) {
+        if (
+            typeof appTheme.muiTheme.colorSchemes?.dark === 'object' &&
+            appTheme.muiTheme.colorSchemes.dark.palette?.background
+        ) {
+            return appTheme.muiTheme.colorSchemes.dark.palette.background;
+        }
+
+        return {
+            paper: darken(theme.colorSchemes.dark.palette.primary.dark, 0.8),
+            default: darken(theme.colorSchemes.dark.palette.primary.dark, 0.9),
+        };
+    }
+
+    return undefined;
+};
+
 export const createTheme = (
     themeMode: ThemeMode,
     appTheme: AppTheme,
@@ -33,93 +87,78 @@ export const createTheme = (
 ) => {
     const systemMode = MediaQuery.getSystemThemeMode();
 
-    const appThemeType = (appTheme.muiTheme.palette as any)?.type ?? appTheme.muiTheme.palette?.mode;
-    const isStaticThemeMode = !!appThemeType;
-    const appThemeMode = appThemeType === 'dark' ? ThemeMode.DARK : ThemeMode.LIGHT;
-    const staticThemeMode = isStaticThemeMode ? appThemeMode : undefined;
-
-    const mode = staticThemeMode ?? (themeMode === ThemeMode.SYSTEM ? systemMode : themeMode);
+    const mode = themeMode === ThemeMode.SYSTEM ? systemMode : themeMode;
     const isDarkMode = mode === ThemeMode.DARK;
     const setPureBlackMode = isDarkMode && pureBlackMode;
 
-    const baseTheme = createMuiTheme({
-        direction,
-        ...appTheme.muiTheme,
-        palette: {
-            mode,
-            ...(appTheme.muiTheme.palette ?? {}),
-        },
-    });
+    const themeForColors = createMuiTheme({ ...appTheme.muiTheme, defaultColorScheme: mode });
 
-    const backgroundTrueBlack: Palette['background'] = {
-        paper: '#111',
-        default: '#000',
-    };
-    const backgroundDark: Palette['background'] = {
-        paper: darken(baseTheme.palette.primary.dark, 0.75),
-        default: darken(baseTheme.palette.primary.dark, 0.85),
-    };
-    const backgroundLight: Palette['background'] = {
-        paper: lighten(baseTheme.palette.primary.dark, 0.8),
-        default: lighten(baseTheme.palette.primary.dark, 0.9),
-    };
-    const backgroundThemeMode = isDarkMode ? backgroundDark : backgroundLight;
-    const automaticBackground = setPureBlackMode ? backgroundTrueBlack : backgroundThemeMode;
-    const appThemeBackground = appTheme.muiTheme.palette?.background;
-
-    const requiresAutomaticBackground = setPureBlackMode || !appThemeBackground;
-    const background = requiresAutomaticBackground ? automaticBackground : appThemeBackground;
-
-    const colorTheme = createMuiTheme(baseTheme, {
-        palette: {
-            background,
-        },
-    });
-
-    const suwayomiTheme = createMuiTheme(colorTheme, {
-        components: {
-            ...appTheme.muiTheme.components,
-            MuiUseMediaQuery: {
-                defaultProps: {
-                    noSsr: true,
-                },
+    const suwayomiTheme = createMuiTheme(
+        deepmerge(appTheme.muiTheme, {
+            defaultColorScheme: mode,
+            direction,
+            colorSchemes: {
+                light: appTheme.muiTheme.colorSchemes?.light
+                    ? {
+                          palette: {
+                              background: getBackgroundColor('light', appTheme, themeForColors),
+                          },
+                      }
+                    : undefined,
+                dark: appTheme.muiTheme.colorSchemes?.dark
+                    ? {
+                          palette: {
+                              background: getBackgroundColor('dark', appTheme, themeForColors, setPureBlackMode),
+                          },
+                      }
+                    : undefined,
             },
-            MuiCssBaseline: {
-                ...appTheme.muiTheme.components?.MuiCssBaseline,
-                styleOverrides:
-                    typeof appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides === 'object'
-                        ? {
-                              ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides,
-                              '*::-webkit-scrollbar': applyStyles(CSS.supports('-webkit-touch-callout', 'none'), {
-                                  width: `${SCROLLBAR_SIZE}px`,
-                                  height: `${SCROLLBAR_SIZE}px`,
-                                  // @ts-ignore - '*::-webkit-scrollbar' is a valid key
-                                  ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides?.[
-                                      '*::-webkit-scrollbar'
-                                  ],
-                              }),
-                              '*::-webkit-scrollbar-thumb': applyStyles(CSS.supports('-webkit-touch-callout', 'none'), {
-                                  border: '4px solid rgba(0, 0, 0, 0)',
-                                  backgroundClip: 'padding-box',
-                                  borderRadius: '9999px',
-                                  backgroundColor: `${colorTheme.palette.primary[isDarkMode ? 'dark' : 'light']}`,
-                                  // @ts-ignore - '*::-webkit-scrollbar-thumb' is a valid key
-                                  ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides?.[
-                                      '*::-webkit-scrollbar-thumb'
-                                  ],
-                              }),
-                              '*::-webkit-scrollbar-thumb:hover': applyStyles(
-                                  CSS.supports('-webkit-touch-callout', 'none'),
-                                  {
-                                      borderWidth: '2px',
-                                      // @ts-ignore - '*::-webkit-scrollbar-thumb:hover' is a valid key
+            components: {
+                ...appTheme.muiTheme.components,
+                MuiUseMediaQuery: {
+                    defaultProps: {
+                        noSsr: true,
+                    },
+                },
+                MuiCssBaseline: {
+                    ...appTheme.muiTheme.components?.MuiCssBaseline,
+                    styleOverrides:
+                        typeof appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides === 'object'
+                            ? {
+                                  ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides,
+                                  '*::-webkit-scrollbar': applyStyles(CSS.supports('-webkit-touch-callout', 'none'), {
+                                      width: `${SCROLLBAR_SIZE}px`,
+                                      height: `${SCROLLBAR_SIZE}px`,
+                                      // @ts-ignore - '*::-webkit-scrollbar' is a valid key
                                       ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides?.[
-                                          '*::-webkit-scrollbar-thumb:hover'
+                                          '*::-webkit-scrollbar'
                                       ],
-                                  },
-                              ),
-                          }
-                        : `
+                                  }),
+                                  '*::-webkit-scrollbar-thumb': applyStyles(
+                                      CSS.supports('-webkit-touch-callout', 'none'),
+                                      {
+                                          border: '4px solid rgba(0, 0, 0, 0)',
+                                          backgroundClip: 'padding-box',
+                                          borderRadius: '9999px',
+                                          backgroundColor: `${themeForColors.palette.primary[isDarkMode ? 'dark' : 'light']}`,
+                                          // @ts-ignore - '*::-webkit-scrollbar-thumb' is a valid key
+                                          ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides?.[
+                                              '*::-webkit-scrollbar-thumb'
+                                          ],
+                                      },
+                                  ),
+                                  '*::-webkit-scrollbar-thumb:hover': applyStyles(
+                                      CSS.supports('-webkit-touch-callout', 'none'),
+                                      {
+                                          borderWidth: '2px',
+                                          // @ts-ignore - '*::-webkit-scrollbar-thumb:hover' is a valid key
+                                          ...appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides?.[
+                                              '*::-webkit-scrollbar-thumb:hover'
+                                          ],
+                                      },
+                                  ),
+                              }
+                            : `
                         @supports not (-webkit-touch-callout: none) {
                           /* CSS for other than iOS devices */ 
                           *::-webkit-scrollbar {
@@ -130,7 +169,7 @@ export const createTheme = (
                             border: 4px solid rgba(0, 0, 0, 0);
                             background-clip: padding-box;
                             border-radius: 9999px;
-                            background-color: ${colorTheme.palette.primary[isDarkMode ? 'dark' : 'light']};
+                            background-color: ${themeForColors.palette.primary[isDarkMode ? 'dark' : 'light']};
                           }
                           *::-webkit-scrollbar-thumb:hover {
                             border-width: 2px;
@@ -139,9 +178,10 @@ export const createTheme = (
                           ${appTheme.muiTheme.components?.MuiCssBaseline?.styleOverrides ?? ''}
                         }
                     `,
+                },
             },
-        },
-    });
+        }),
+    );
 
     return responsiveFontSizes(suwayomiTheme);
 };
diff --git a/yarn.lock b/yarn.lock
index e5b0aaf6..0b0b6f58 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2409,6 +2409,11 @@
   resolved "https://registry.yarnpkg.com/@mui/types/-/types-7.2.20.tgz#16d8c9178b42b62ba95bbedbda8f343feb373d1e"
   integrity sha512-straFHD7L8v05l/N5vcWk+y7eL9JF0C2mtph/y4BPm3gn2Eh61dDwDB65pa8DLss3WJfDXYC7Kx5yjP0EmXpgw==
 
+"@mui/types@^7.2.21":
+  version "7.2.21"
+  resolved "https://registry.yarnpkg.com/@mui/types/-/types-7.2.21.tgz#63f50874eda8e4a021a69aaa8ba9597369befda2"
+  integrity sha512-6HstngiUxNqLU+/DPqlUJDIPbzUBxIVHb1MmXP0eTWDIROiCR2viugXpEif0PPe2mLqqakPzzRClWAnK+8UJww==
+
 "@mui/utils@^5.16.6 || ^6.0.0", "@mui/utils@^6.3.0":
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/@mui/utils/-/utils-6.3.0.tgz#76c80cb663c7c1bdf782de50a5c3f6ff8bf38e21"
@@ -2421,6 +2426,18 @@
     prop-types "^15.8.1"
     react-is "^19.0.0"
 
+"@mui/utils@^6.4.0":
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/@mui/utils/-/utils-6.4.0.tgz#817d8135794b8741ad0267b90dc656361f1c0030"
+  integrity sha512-woOTATWNsTNR3YBh2Ixkj3l5RaxSiGoC9G8gOpYoFw1mZM77LWJeuMHFax7iIW4ahK0Cr35TF9DKtrafJmOmNQ==
+  dependencies:
+    "@babel/runtime" "^7.26.0"
+    "@mui/types" "^7.2.21"
+    "@types/prop-types" "^15.7.14"
+    clsx "^2.1.1"
+    prop-types "^15.8.1"
+    react-is "^19.0.0"
+
 "@mui/x-date-pickers@7.23.3":
   version "7.23.3"
   resolved "https://registry.yarnpkg.com/@mui/x-date-pickers/-/x-date-pickers-7.23.3.tgz#0c2b3db6a99e6e38aeb0980bfdf98468f415dded"