Examine source code of Midnight Crimson Theme

{
  "name": "eyes",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "eyes.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(251, 3, 0, 0.7)",
      "toolbar": "rgba(0, 0, 0, 0.6)",
      "bookmark_text": "rgba(251, 3, 0, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(251, 3, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9e2e803b-93d6-4110-84af-b07c5906405f}"
    }
  }
}