Examine source code of Filagree

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#faea5c",
      "tab_background_text": "#4a172d"
    }
  },
  "version": "2.0",
  "name": "Filagree",
  "manifest_version": 2,
  "description": "This is what I use to brand myself as a designer and thought it might work well for web browsers"
}