Function customThemeRevealTarget

apps/desktop/src/main/custom-themes.ts:410–420

(slug?: string)

/** What to reveal in the file manager: a theme's `theme.css` when the slug is
 *  valid and exists, otherwise its folder, otherwise the themes dir. */
export async function customThemeRevealTarget(slug?: string): Promise<string> {
  const dir = await ensureCustomThemesDir()
  if (isSafeSlug(slug)) {
    const folder = path.join(dir, slug)
    if (path.dirname(path.resolve(folder)) === path.resolve(dir) && fsSync.existsSync(folder)) {
      const css = path.join(folder, 'theme.css')
      return fsSync.existsSync(css) ? css : folder
    }
  }
  return dir
}

/** Delete a custom theme folder. Refuses anything that isn't a bare slug
 *  resolving to a direct child of the themes dir (no path traversal). */