Examine source code of Purple modern

{
  "name": "Purple modern",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "videe.png"
    },
    "colors": {
      "frame": "rgba(61, 38, 94, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(73, 41, 115, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(64, 36, 97, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.8)",
      "tab_line": "rgba(255, 255, 255, 0.11)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2f3110a0-dc96-4fca-a842-bb070d768476}"
    }
  }
}