Examine source code of PacificRim-NoToolBars

{
  "theme": {
    "images": {
      "theme_frame": "Pacific-Rim.jpg"
    },
    "colors": {
      "frame": "#7a6f6f",
      "tab_background_text": "#0a0505"
    }
  },
  "version": "2.0",
  "name": "PacificRim-NoToolBars",
  "manifest_version": 2,
  "description": "This is sized for no tool bars in your FireFox.   This will work just fine with tool bars but the images are only at the top of the persona so you just get white background behind your toolbars."
}