Examine source code of TRMW-BG

{
  "name": "TRMW-BlueGray",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "TRMW-BlueGray4.png"
    },
    "colors": {
      "frame": "rgba(81, 92, 107, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(151, 157, 166, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(199, 215, 234, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}