Examine source code of Jonathan Blow Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "j_blow (medium contrast)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(9, 49, 54)",
      "toolbar_text": "rgb(161, 152, 133)",
      "frame": "rgb(12, 39, 42)",
      "tab_background_text": "rgb(161, 152, 133)",
      "toolbar_field": "rgb(7, 39, 43)",
      "toolbar_field_text": "rgb(201, 186, 146)",
      "tab_line": "rgb(7, 39, 43)",
      "popup": "rgb(4, 35, 38)",
      "popup_text": "rgb(143, 188, 187)",
      "button_background_active": "rgb(135, 200, 170)",
      "icons_attention": "rgb(143, 188, 187)",
      "icons": "rgb(61, 109, 118)",
      "ntp_background": "rgb(4, 35, 38)",
      "popup_border": "rgb(4, 35, 38)",
      "popup_highlight_text": "rgb(216, 222, 233)",
      "popup_highlight": "rgb(0, 14, 255)",
      "sidebar_border": "rgb(9, 49, 54)",
      "sidebar_text": "rgb(198, 218, 233)",
      "sidebar": "rgb(9, 49, 54)",
      "tab_loading": "rgb(143, 188, 187)",
      "tab_selected": "rgb(9, 49, 54)",
      "tab_text": "rgb(46, 174, 43)",
      "toolbar_bottom_separator": "rgb(9, 49, 54)",
      "toolbar_field_border_focus": "rgb(143, 188, 187)",
      "toolbar_field_focus": "rgb(8, 39, 43)",
      "toolbar_field_highlight_text": "rgb(234, 224, 209)",
      "toolbar_field_highlight": "rgb(0, 14, 255)",
      "toolbar_field_text_focus": "rgb(234, 224, 209)",
      "toolbar_top_separator": "rgb(9, 49, 54)",
      "toolbar_vertical_separator": "rgb(41, 84, 91)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{32f7a5ba-e59a-4dbf-b984-5c06a18b2754}"
    }
  }
}