Examine source code of myview7

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_V7.png"
    },
    "colors": {
      "frame": "#c8c8c8",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "myview7",
  "manifest_version": 2,
  "description": "Based on the Vista Firefox Aero color with some added details - top bar and tiny divider lines for menus"
}