Examine source code of Easter Valley by M♥Donna

{
  "name": "Easter Valley by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Easter Valley.jpg"
    },
    "colors": {
      "frame": "rgba(83, 103, 18, 1)",
      "tab_background_text": "rgba(255, 248, 51, 1)",
      "toolbar": "rgba(82, 105, 19, 0)",
      "bookmark_text": "rgba(255, 248, 51, 1)",
      "toolbar_field": "rgba(77, 99, 18, 0.09)",
      "toolbar_field_text": "rgba(255, 248, 51, 1)",
      "tab_line": "rgba(255, 248, 51, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{09f7b4b3-e078-4203-8ca7-19d40190c902}"
    }
  }
}