Examine source code of Handspun Knits

{
  "theme": {
    "images": {
      "theme_frame": "Knit_Header.jpg"
    },
    "colors": {
      "frame": "#5e4b5b",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Handspun Knits",
  "manifest_version": 2,
  "description": "A bit of brightly dyed handspun knitting, to give your Firefox that soft and fuzzy feeling."
}