Apply theme to 5.3.8

site/data/grays.yml

@@ -1,18 +1,18 @@
 - name: 100
-  hex: "#f8f9fa"
+  hex: '#f8f9fa'
 - name: 200
-  hex: "#e9ecef"
+  hex: '#e9ecef'
 - name: 300
-  hex: "#dee2e6"
+  hex: '#dee2e6'
 - name: 400
-  hex: "#ced4da"
+  hex: '#ced4da'
 - name: 500
-  hex: "#adb5bd"
+  hex: '#adb5bd'
 - name: 600
-  hex: "#868e96"
+  hex: '#868e96'
 - name: 700
-  hex: "#495057"
+  hex: '#495057'
 - name: 800
-  hex: "#343a40"
+  hex: '#343a40'
 - name: 900
-  hex: "#212529"
+  hex: '#212529'