Examine source code of The Gimp

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_gimp.jpg"
    },
    "colors": {
      "frame": "#fc5400",
      "tab_background_text": "#fc5400"
    }
  },
  "version": "2.0",
  "name": "The Gimp",
  "manifest_version": 2,
  "description": "a perfect persona for the Gimp' s fans!\nMade with Gimp."
}