Examine source code of cabalmate

{
  "name": "cabalmate",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "cabalmate.png"
    },
    "colors": {
      "frame": "rgba(245, 247, 250, 0.02)",
      "tab_background_text": "rgba(250, 250, 250, 0.99)",
      "toolbar": "rgba(245, 247, 250, 0)",
      "bookmark_text": "rgba(250, 250, 250, 0.99)",
      "toolbar_field": "rgba(65, 65, 66, 0.02)",
      "toolbar_field_text": "rgba(250, 250, 250, 0.99)"
    }
  }
}