Examine source code of matrix theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "matrix theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-020-48c286b34e53380d46803c2e5603a5b2.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(57, 55, 58, 0.73)",
      "toolbar_text": "rgb(30, 251, 6)",
      "frame": "rgb(11, 12, 11)",
      "tab_background_text": "rgb(24, 248, 7)",
      "toolbar_field": "rgb(13, 13, 12)",
      "toolbar_field_text": "rgb(244, 1, 247)",
      "tab_line": "rgb(217, 25, 220)",
      "popup": "rgb(7, 7, 7)",
      "popup_text": "rgb(3, 248, 27)",
      "tab_loading": "rgb(217, 25, 220)"
    }
  }
}