update empty string to null

src/css/quasar.variables.scss

@@ -12,7 +12,7 @@
 // to match your app's branding.
 // Tip: Use the "Theme Builder" on Quasar's documentation website.
 
-$primary   : #1976D2;
+$primary   : #27A7E7;
 $secondary : #26A69A;
 $accent    : #9C27B0;
 
@@ -26,4 +26,16 @@ $warning   : #F2C037;
 
 $lightgrey   : #DCDCDC;
 
-$body-font-size: var(--dynamic-font-size)
+$body-font-size: var(--dynamic-font-size);
+
+$typography-font-family: 'myFont', Roboto !default;
+
+body, html, #q-app {
+  font-family: $typography-font-family;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+* {
+  font-family: inherit;
+}