Examine source code of Overview by M♥Donna

{
  "name": "Overview by M♥Donna",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "OverviewH.jpg"
    },
    "colors": {
      "frame": "rgba(27, 25, 26, 1)",
      "tab_background_text": "rgba(255, 238, 196, 1)",
      "toolbar": "rgba(26, 24, 25, 0)",
      "bookmark_text": "rgba(255, 241, 207, 1)",
      "toolbar_field": "rgba(26, 24, 25, 0.07)",
      "toolbar_field_text": "rgba(255, 235, 184, 1)",
      "tab_line": "rgba(255, 212, 102, 1)"
    }
  }
}