Examine source code of Purpling bubbles

{
  "name": "Purpling bubbles",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "86b2d6aa5f05e0c30d66674e9d4af18d.jpg"
    },
    "colors": {
      "frame": "rgb(12, 12, 111)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgb(136, 62, 185)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgb(218, 113, 178)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  }
}