Examine source code of Dark Red

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Red",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-001-9c6d74e14860e77ee6f8f43e824bff25.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(98, 6, 1)",
      "toolbar_text": "rgb(143, 143, 143)",
      "frame": "rgb(119, 14, 1)",
      "tab_background_text": "rgb(140, 140, 140)",
      "toolbar_field": "rgb(85, 6, 6)",
      "toolbar_field_text": "rgb(249, 249, 249)",
      "tab_line": "rgb(227, 85, 21)",
      "popup": "rgb(139, 28, 6)",
      "popup_text": "rgb(140, 140, 140)",
      "frame_inactive": "rgb(113, 7, 7)",
      "icons": "rgb(211, 93, 37)",
      "tab_text": "rgb(248, 148, 100)",
      "tab_loading": "rgb(227, 85, 21)"
    }
  }
}