Examine source code of TKS BlueGray

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "TKS BlueGray",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-011-d53e0d0d1538ed554a90e056a2f04eca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(107, 111, 115)",
      "toolbar_text": "rgb(223, 226, 232)",
      "frame": "rgb(10, 58, 118)",
      "tab_background_text": "rgb(248, 248, 248)",
      "toolbar_field": "rgb(109, 111, 116)",
      "toolbar_field_text": "rgb(232, 236, 241)",
      "tab_line": "rgb(10, 58, 118)",
      "popup": "rgb(138, 161, 175)",
      "popup_text": "rgb(25, 33, 43)",
      "tab_loading": "rgb(10, 58, 118)"
    }
  }
}