Examine source code of Dark Grey / Orange

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Grey / Orange",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-001-9c6d74e14860e77ee6f8f43e824bff25.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(51, 51, 51)",
      "toolbar_text": "rgb(144, 146, 150)",
      "frame": "rgb(34, 34, 34)",
      "tab_background_text": "rgb(68, 68, 68)",
      "toolbar_field": "rgb(34, 34, 34)",
      "toolbar_field_text": "rgb(144, 146, 150)",
      "tab_line": "rgb(247, 111, 20)",
      "popup": "rgb(34, 34, 34)",
      "popup_text": "rgb(144, 146, 150)",
      "icons_attention": "rgb(247, 111, 20)",
      "ntp_background": "rgb(51, 51, 51)",
      "ntp_text": "rgb(144, 146, 150)",
      "popup_border": "rgb(247, 111, 20)",
      "tab_text": "rgb(144, 146, 150)",
      "toolbar_field_border_focus": "rgb(247, 111, 20)",
      "toolbar_field_highlight_text": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgb(144, 146, 150)",
      "tab_loading": "rgb(247, 111, 20)"
    }
  }
}