Examine source code of Light Paper Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Light Paper",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(249, 249, 249)",
      "toolbar_text": "rgb(33, 33, 33)",
      "frame": "rgb(238, 238, 238)",
      "tab_background_text": "rgb(113, 113, 113)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(56, 56, 56)",
      "tab_line": "rgb(249, 249, 249)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(33, 33, 33)",
      "icons_attention": "rgb(101, 101, 101)",
      "icons": "rgb(33, 33, 33)",
      "toolbar_field_border": "rgb(217, 217, 217)",
      "toolbar_top_separator": "rgb(183, 183, 183)",
      "tab_loading": "rgb(249, 249, 249)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3dbf06d2-fcb5-4052-901b-12e12fdc32f3}"
    }
  }
}