diff --git a/web/slide_puzzle/web/assets/FontManifest.json b/web/slide_puzzle/web/assets/FontManifest.json
index 68ad82100..18f3f2f0e 100644
--- a/web/slide_puzzle/web/assets/FontManifest.json
+++ b/web/slide_puzzle/web/assets/FontManifest.json
@@ -11,7 +11,7 @@
     "family": "Plaster",
     "fonts": [
       {
-        "asset": "plaster.woff2"
+        "asset": "https://fonts.gstatic.com/l/font?kit=DdTm79QatW80eRh4EitJPNLPUrnLdNiMw9JVKCON&skey=6748ccde38e8a5e5&v=v10"
       }
     ]
   }
diff --git a/web/slide_puzzle/web/assets/plaster.woff2 b/web/slide_puzzle/web/assets/plaster.woff2
deleted file mode 100644
index 3eafd899b..000000000
Binary files a/web/slide_puzzle/web/assets/plaster.woff2 and /dev/null differ
diff --git a/web/slide_puzzle/web/assets/readme.md b/web/slide_puzzle/web/assets/readme.md
new file mode 100644
index 000000000..da3a24263
--- /dev/null
+++ b/web/slide_puzzle/web/assets/readme.md
@@ -0,0 +1,15 @@
+### Material Icon font
+
+Via https://google.github.io/material-design-icons/#icon-font-for-the-web
+
+Via https://fonts.googleapis.com/icon?family=Material+Icons
+
+### Plaster font
+
+Via https://fonts.google.com/specimen/Plaster
+
+Via https://fonts.googleapis.com/css?family=Plaster&text=0123456789
+
+*Note `text=` includes only the used characters – 0-9.*
+
+*HT to https://twitter.com/csswizardry/status/1139435442506469376*