Examine source code of Clean Blue 2021

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Clean Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-014-1586da559b26f11cd37804ee9347a16b.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(244, 243, 238)",
      "toolbar_text": "rgb(23, 24, 59)",
      "frame": "rgb(75, 179, 253)",
      "tab_background_text": "rgb(23, 24, 59)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(23, 24, 59)",
      "tab_line": "rgb(244, 243, 238)",
      "popup": "rgb(244, 243, 238)",
      "popup_text": "rgb(23, 24, 59)",
      "frame_inactive": "rgb(75, 161, 223)",
      "icons": "rgb(55, 63, 81)",
      "sidebar_text": "rgb(23, 24, 59)",
      "tab_selected": "rgb(244, 243, 238)",
      "tab_text": "rgb(0, 0, 0)",
      "toolbar_bottom_separator": "rgb(244, 243, 238)",
      "toolbar_field_border": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(244, 243, 238)",
      "tab_loading": "rgb(244, 243, 238)"
    }
  }
}