Examine source code of Orange Strings

{
  "theme": {
    "images": {
      "theme_frame": "header2.png"
    },
    "colors": {
      "frame": "#8717b0",
      "tab_background_text": "#8717b0"
    }
  },
  "version": "2.0",
  "name": "Orange Strings",
  "manifest_version": 2,
  "description": "Simple design, dope colours"
}