Examine source code of Patch Julia

{
  "name": "Patch Julia",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "20181114_090513.jpg"
    },
    "colors": {
      "toolbar": "rgba(217, 56, 56, 1)",
      "toolbar_field": "rgba(235, 123, 123, 1)",
      "frame": "rgba(0, 67, 212, 1)",
      "tab_background_text": "rgba(235, 35, 35, 1)"
    }
  }
}