Examine source code of Red Rose 2020

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Red Rose 2020",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(15, 20, 16, 0.12)",
      "toolbar_text": "rgb(228, 221, 222)",
      "frame": "rgb(69, 6, 6)",
      "tab_background_text": "rgb(180, 225, 184)",
      "toolbar_field": "rgba(216, 0, 4, 0)",
      "toolbar_field_text": "rgb(228, 221, 222)",
      "tab_line": "rgb(176, 3, 3)",
      "popup": "rgb(15, 20, 16)",
      "popup_text": "rgb(228, 221, 222)",
      "tab_loading": "rgb(176, 3, 3)"
    }
  }
}