Examine source code of Black / EmeraldGreen

{
  "name": "Green",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "黒.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 255, 187, 1)",
      "toolbar": "rgba(32, 30, 41, 1)",
      "bookmark_text": "rgba(0, 255, 179, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(0, 138, 110, 1)",
      "tab_line": "rgba(89, 0, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8a30cd60-e9fc-4430-bec8-af8a59f2085a}"
    }
  }
}