Examine source code of black form

{
  "theme": {
    "images": {
      "theme_frame": "web-Copy.JPG"
    },
    "colors": {
      "frame": "#4d4646",
      "tab_background_text": "#f2e1e1"
    }
  },
  "version": "2.0",
  "name": "black form",
  "manifest_version": 2
}