Examine source code of High Contrast Reds

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "High Contrast Reds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-032-c7f80ac9e21af771c8d088973b1309ea.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(211, 211, 211)",
      "frame": "rgb(128, 0, 0)",
      "tab_background_text": "rgb(255, 189, 189)",
      "toolbar_field": "rgb(230, 208, 170)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(241, 255, 0)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(198, 201, 255)",
      "icons_attention": "rgb(255, 193, 0)",
      "icons": "rgb(255, 109, 109)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgb(0, 200, 255)",
      "popup_highlight_text": "rgb(0, 255, 234)",
      "popup_highlight": "rgb(0, 200, 255)",
      "tab_loading": "rgb(241, 255, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fb83cc7b-8c37-4499-bbe4-76777c1363b7}"
    }
  }
}