Examine source code of Sun Setting by M♥Donna

{
  "name": "Sun Setting by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Sun Setting.jpg"
    },
    "colors": {
      "frame": "rgba(76, 52, 30, 1)",
      "tab_background_text": "rgba(255, 255, 0, 1)",
      "toolbar": "rgba(77, 53, 30, 0)",
      "bookmark_text": "rgba(255, 255, 0, 1)",
      "toolbar_field": "rgba(77, 53, 30, 0.05)",
      "toolbar_field_text": "rgba(251, 255, 0, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  }
}