Function setCachedSystemTheme

src/utils/systemTheme.ts:35–37

(theme: SystemTheme)

 * query returns so non-React call sites stay in sync.
 */
export function setCachedSystemTheme(theme: SystemTheme): void {
  cachedSystemTheme = theme
}

/**
 * Resolve a ThemeSetting (which may be 'auto') to a concrete ThemeName.