// types/theme.ts export type ColorScheme = 'light' | 'dark'; export type ThemeName = 'default' | 'powr' | 'highContrast'; export interface ThemeColors { primary: string; background: string; cardBg: string; text: string; textSecondary: string; border: string; tabIconDefault: string; tabIconSelected: string; error: string; } export interface AppThemeConfig { theme: ThemeName; useSystemTheme: boolean; colorScheme: ColorScheme; }