Examine source code of BlackAce

{
  "theme": {
    "images": {
      "theme_frame": "Blackace.JPG"
    },
    "colors": {
      "frame": "#5e5050",
      "tab_background_text": "#ff0000"
    }
  },
  "version": "2.0",
  "name": "BlackAce",
  "manifest_version": 2,
  "description": "another black ace picture but around the twist"
}