code: func (p *PathSpec) GetFirstThemeDir() string {
  	if p.ThemeSet() {
  		return p.AbsPathify(filepath.Join(p.ThemesDir, p.Themes()[0]))
  	}
  	return ""
  }
docs: // GetFirstThemeDir gets the root directory of the first theme, if there is one.
  // If there is no theme, returns the empty string.