Examine source code of Eye by M♥Donna

{
  "name": "Eye by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "EYE3.jpg"
    },
    "colors": {
      "frame": "rgba(8, 26, 46, 1)",
      "tab_background_text": "rgba(252, 252, 252, 1)",
      "toolbar": "rgba(9, 26, 48, 0)",
      "bookmark_text": "rgba(145, 255, 242, 1)",
      "toolbar_field": "rgba(9, 26, 48, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f6b7e2fa-0422-4af2-b053-0ae0e2f9123e}"
    }
  }
}