Reader custom color filter

src/modules/reader/components/ReaderRGBAFilter.tsx

@@ -0,0 +1,41 @@
+/*
+ * 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 Box from '@mui/material/Box';
+import { ReaderService } from '@/modules/reader/services/ReaderService.ts';
+import { useNavBarContext } from '@/modules/navigation-bar/contexts/NavbarContext.tsx';
+
+export const ReaderRGBAFilter = () => {
+    const { readerNavBarWidth } = useNavBarContext();
+    const {
+        customFilter: {
+            rgba: {
+                value: { red, green, blue, alpha },
+                enabled,
+            },
+        },
+    } = ReaderService.useSettings();
+
+    if (!enabled) {
+        return null;
+    }
+
+    return (
+        <Box
+            sx={{
+                position: 'fixed',
+                top: 0,
+                left: readerNavBarWidth,
+                right: 0,
+                bottom: 0,
+                pointerEvents: 'none',
+                background: `rgba(${red} ${green} ${blue} / ${alpha}%)`,
+            }}
+        />
+    );
+};