Examine source code of Patriotic Firefox

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpersonafoxbanner1usaflag.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#fce300"
    }
  },
  "version": "2.0",
  "name": "Patriotic Firefox",
  "manifest_version": 2,
  "description": "Firefox fox with USA flag in the background. Be patriotic and wear this red, white, and blue firefox persona. God bless the USA."
}