Examine source code of Blue Orange Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Orange",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-032-c7f80ac9e21af771c8d088973b1309ea.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 181, 154)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(108, 128, 255)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(108, 181, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(148, 180, 255)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(207, 198, 255)",
      "popup_border": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgb(108, 181, 255)",
      "toolbar_bottom_separator": "rgba(180, 194, 255, 0)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{747fde91-acfb-48e5-84b4-a660b01faa77}"
    }
  }
}