Examine source code of Classic360

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Classic360",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-006-51ab495c5f5dde6a3cddb22484acd00d.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(68, 94, 111)",
      "toolbar_text": "rgb(240, 240, 247)",
      "frame": "rgb(40, 74, 93)",
      "tab_background_text": "rgb(236, 236, 244)",
      "toolbar_field": "rgb(19, 19, 21)",
      "toolbar_field_text": "rgb(166, 166, 230)",
      "tab_line": "rgb(8, 8, 8)",
      "popup": "rgb(8, 8, 8)",
      "popup_text": "rgb(130, 130, 161)",
      "icons": "rgb(240, 240, 247)",
      "tab_loading": "rgb(8, 8, 8)"
    }
  }
}