Examine source code of pinksoft

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpinkcameogradient.jpg"
    },
    "colors": {
      "frame": "#efbccd",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "pinksoft",
  "manifest_version": 2,
  "description": "Soft pink gradient. One of the shades used is \"cameo pink\". Calm, gentle pink.  Pinkness galore."
}