Examine source code of BlueR

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Ribbon",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-028-5466583598afcc175c90e35aceb1246b.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(31, 34, 61)",
      "toolbar_text": "rgb(31, 174, 231)",
      "frame": "rgb(51, 62, 145)",
      "tab_background_text": "rgb(120, 237, 144)",
      "toolbar_field": "rgb(72, 80, 149)",
      "toolbar_field_text": "rgb(187, 219, 231)",
      "tab_line": "rgb(205, 35, 185)",
      "popup": "rgb(31, 34, 61)",
      "popup_text": "rgb(50, 87, 131)",
      "tab_loading": "rgb(205, 35, 185)"
    }
  }
}