Examine source code of FREE STYLE 2020

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "free style",
  "theme": {
    "images": {
      "additional_backgrounds": []
    },
    "properties": {
      "additional_backgrounds_alignment": [],
      "additional_backgrounds_tiling": []
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(87, 254, 3)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(87, 254, 3)",
      "toolbar_field": "rgb(203, 203, 203)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(255, 0, 0)",
      "popup": "rgb(221, 221, 221)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 0, 0)"
    }
  }
}