Examine source code of Ohio State Gray

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "OSU Ohio State Gray",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(163, 31, 47, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(68, 68, 68)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(198, 0, 48)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(198, 0, 48)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(198, 0, 48)",
      "button_background_hover": "rgb(198, 0, 48)",
      "frame_inactive": "rgb(255, 255, 255)",
      "icons_attention": "rgb(255, 255, 255)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(68, 68, 68)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(255, 255, 255)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(255, 255, 255)",
      "sidebar_border": "rgb(255, 255, 255)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(255, 255, 255)",
      "sidebar_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3de393f-0570-45cd-a274-178eff175522}"
    }
  }
}