Examine source code of Summers Beautiful Changes

{
  "name": "Summers Beautiful Changes",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "SCH4.jpg"
    },
    "colors": {
      "frame": "rgba(97, 164, 55, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(96, 163, 54, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(96, 163, 54, 0.07)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b7f7d34-6335-4500-bd9b-878e09d5ef05}"
    }
  }
}