Examine source code of Oxides

{
  "theme": {
    "images": {
      "theme_frame": "oxides_head.jpg"
    },
    "colors": {
      "frame": "#5c4514",
      "tab_background_text": "#301f05"
    }
  },
  "version": "2.0",
  "name": "Oxides",
  "manifest_version": 2,
  "description": "A kaleidoscope of oxidised rock."
}