Examine source code of Metal Sonic 1

{
  "theme": {
    "images": {
      "theme_frame": "MetalSonicBanner2.jpg"
    },
    "colors": {
      "frame": "#0b1330",
      "tab_background_text": "#06093d"
    }
  },
  "version": "2.0",
  "name": "Metal Sonic 1",
  "manifest_version": 2,
  "description": "Another attempt at a banner with metal sonic. T_T"
}