Add custom themes

src-shared/Settings.ts

@@ -1,5 +1,7 @@
 import { Difficulty, Instrument } from 'scan-chart'
 
+import { ThemeColors } from './interfaces/theme.interface'
+
 export const themes = [
 	'business',
 	'dark',
@@ -23,6 +25,7 @@ export const themes = [
 export interface Settings {
 	downloadVideos: boolean         // If background videos should be downloaded
 	theme: typeof themes[number]    // The name of the currently enabled UI theme
+	customTheme: ThemeColors | null // The colors of a custom theme
 	libraryPath: string | undefined // The path to the user's library
 	isSng: boolean                  // If the chart should be downloaded as a .sng file or as a chart folder
 	isCompactTable: boolean         // If the search result table should have reduced padding
@@ -37,6 +40,7 @@ export interface Settings {
 export const defaultSettings: Settings = {
 	downloadVideos: true,
 	theme: 'dark',
+	customTheme: null,
 	libraryPath: undefined,
 	isSng: false,
 	isCompactTable: false,