Examine source code of Colour s

{
  "name": "Colour s",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "IMG_20200426_082311.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(214, 21, 21, 1)",
      "toolbar": "rgba(61, 129, 224, 0)",
      "bookmark_text": "rgba(14, 37, 41, 1)",
      "toolbar_field": "rgba(224, 40, 40, 1)",
      "toolbar_field_text": "rgba(235, 215, 61, 1)"
    }
  }
}