Examine source code of Different 000

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#74f2f2",
      "tab_background_text": "#ad2828"
    }
  },
  "version": "2.0",
  "name": "Different 000",
  "manifest_version": 2,
  "description": "Just wanted to make something that I wouldn't mind having."
}