make a cute little canvas to draw on and hook it up to some ojs

.quarto/_freeze/site_libs/quarto-listing/quarto-listing.js

@@ -2,8 +2,7 @@ const kProgressiveAttr = "data-src";
 let categoriesLoaded = false;
 
 window.quartoListingCategory = (category) => {
-  // category is URI encoded in EJS template for UTF-8 support
-  category = decodeURIComponent(atob(category));
+  category = atob(category);
   if (categoriesLoaded) {
     activateCategory(category);
     setCategoryHash(category);