Firefox

manifest.json

{
  "theme": {
    "images": {
      "theme_frame": "header1.png"
    },
    "colors": {
      "frame": "#ba9191",
      "tab_background_text": "#381616"
    }
  },
  "version": "2.0",
  "name": "Firefox",
  "manifest_version": 2,
  "description": "firefox"
}