Examine source code of plaid4shirt4u

{
  "name": "plaid4shirt4u",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "tartanmarchetti.jpg"
    },
    "colors": {
      "frame": "rgba(227, 229, 232, 0)",
      "tab_background_text": "rgba(60, 108, 110, 1)",
      "toolbar": "rgba(80, 140, 143, 0)",
      "bookmark_text": "rgba(37, 65, 66, 1)",
      "toolbar_field": "rgba(37, 65, 66, 0.51)",
      "toolbar_field_text": "rgba(37, 65, 66, 1)"
    }
  }
}