Examine source code of islets theme

{
  "name": "islets theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "islets-theme.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(240, 187, 187, 1)",
      "toolbar": "rgba(227, 177, 177, 1)",
      "bookmark_text": "rgba(84, 16, 16, 1)",
      "toolbar_field": "rgba(156, 122, 122, 1)",
      "toolbar_field_text": "rgba(51, 12, 12, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c1cb3ee-d953-4bc6-b6e2-343c2214831d}"
    }
  }
}