fonts: add Krub (#54121)

README

@@ -314,6 +314,13 @@ copyright notices:
   # Licensed under the SIL Open Font License 1.1 (http://scripts.sil.org/OFL).
   #
   # https://github.com/EkType/Baloo2
+
+* Krub
+  # Copyright 2018 The Krub Project Authors (https://github.com/cadsondemak/Krub)
+  #
+  # This Font Software is licensed under the SIL Open Font License, Version 1.1.
+  #
+  # https://github.com/cadsondemak/Krub/
 ~~~~
 
 Some theme variant files have their own specific licenses; refer to

static/includes/fonts/_krub.scss

@@ -0,0 +1,23 @@
+@mixin krub-font($type, $weight) {
+	@font-face {
+		font-family: 'Krub';
+		src: url('/static/fonts/Krub/Krub-#{$type}.woff2') format('woff2'),
+		     url('/static/fonts/Krub/Krub-#{$type}.woff') format('woff');
+		font-weight: $weight;
+		font-style: normal;
+	}
+	@font-face {
+		font-family: 'Krub';
+		src: url('/static/fonts/Krub/Krub-#{$type}Italic.woff2') format('woff2'),
+		     url('/static/fonts/Krub/Krub-#{$type}Italic.woff') format('woff');
+		font-weight: $weight;
+		font-style: italic;
+	}
+}
+
+@include krub-font('Extralight', 200);
+@include krub-font('Light', 300);
+@include krub-font('Regular', 400);
+@include krub-font('Medium', 500);
+@include krub-font('Semibold', 600);
+@include krub-font('Bold', 700);