Examine source code of Spring Light by M♥Donna

{
  "name": "Spring Light by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Sspring Light 2.jpg"
    },
    "colors": {
      "frame": "rgba(20, 49, 54, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(20, 48, 71, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(20, 48, 71, 0.08)",
      "toolbar_field_text": "rgba(245, 245, 245, 1)",
      "tab_line": "rgba(252, 184, 184, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ace2390d-6859-4fee-b4f0-a8ea4a982fdd}"
    }
  }
}