Examine source code of Zherod3th theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#dbdbdb",
      "tab_background_text": "#ee00ff"
    }
  },
  "version": "2.0",
  "name": "Zherod3th theme",
  "manifest_version": 2,
  "description": "my logo on gradient hell background"
}