Examine source code of Flowers for Spring

{
  "name": "Flowers for Spring",
  "manifest_version": 2,
  "version": "2.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "FlowerBedH1.jpg"
    },
    "colors": {
      "frame": "rgba(242, 177, 177, 0)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.04)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c373725e-6784-4483-9b1b-a8eec020b904}"
    }
  }
}