Examine source code of toolbar theme

{
  "name": "1st addon",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "IMG_20211120_121054.jpg"
    },
    "colors": {
      "frame": "rgba(154, 37, 217, 0.54)",
      "tab_background_text": "rgba(28, 116, 230, 1)",
      "toolbar": "rgba(184, 232, 12, 0.67)",
      "bookmark_text": "rgba(19, 94, 29, 0.63)",
      "toolbar_field": "rgba(245, 235, 236, 0.99)",
      "toolbar_field_text": "rgba(21, 30, 59, 0.79)",
      "tab_line": "rgba(192, 57, 222, 0.59)"
    }
  }
}