Add donuts

media/food/fast-food/donut.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 24.1.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 75 75" style="enable-background:new 0 0 75 75;" xml:space="preserve">
+<path d="M37.5,0C16.79,0,0,16.79,0,37.5S16.79,75,37.5,75C58.21,75,75,58.21,75,37.5S58.21,0,37.5,0z M37.5,46.91
+	c-5.2,0-9.41-4.21-9.41-9.41s4.21-9.41,9.41-9.41c5.2,0,9.41,4.21,9.41,9.41S42.7,46.91,37.5,46.91z"/>
+</svg>

presets/food.js

@@ -117,7 +117,8 @@ function makeFood() {
             ["hamburger", 2.5, "inches"],
             ["french-fry", 4, "inches"],
             ["chicken-nugget", 1.65, "inches"],
-            ["onion-ring", 4, "inches"]
+            ["onion-ring", 4, "inches"],
+            ["donut", 75, "mm"],
         ],
         "Fast Food",
         "",