Examine source code of Buy-Stuff-Sleep

{
  "name": "Hyper-Theme",
  "manifest_version": 2,
  "version": "1.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "ak5ejwle2li01.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(18, 18, 18, 0.26)",
      "bookmark_text": "rgba(28, 27, 27, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{404f91e7-af2b-4e55-9f45-e02b81f04382}"
    }
  }
}