Examine source code of Petals Light

{
  "name": "Petals Light",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Petals Light.png"
    },
    "colors": {
      "frame": "rgba(242, 247, 253, 1)",
      "tab_background_text": "rgba(36, 36, 36, 1)",
      "toolbar": "rgba(216, 229, 230, 0.89)",
      "bookmark_text": "rgba(36, 36, 36, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.9)",
      "toolbar_field_text": "rgba(36, 36, 36, 1)",
      "tab_line": "rgba(242, 202, 179, 0.52)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8664815e-39c9-4ba9-9a62-1e207759854a}"
    }
  }
}