Examine source code of CerealKillaz.Org 3

{
  "theme": {
    "images": {
      "theme_frame": "green_CK_header.png"
    },
    "colors": {
      "frame": "#50c270",
      "tab_background_text": "#15ed3d"
    }
  },
  "version": "2.0",
  "name": "CerealKillaz.Org 3",
  "manifest_version": 2,
  "description": "Another persona from everyone's favorite MTGO clan."
}