fonts: add Exo 2 (#35389)

README

@@ -186,6 +186,13 @@ copyright notices:
   #
   # https://www.fontsquirrel.com/license/work-sans
 
+* Exo 2
+  # Copyright (c) 2013, Natanael Gama (www.ndiscovered.com . info(at)ndiscovered.com), with Reserved Font Name Exo.
+  #
+  # This Font Software is licensed under the SIL Open Font License, Version 1.1.
+  #
+  # https://www.fontsquirrel.com/license/exo-2
+
 ~~~~
 
 Some theme variant files have their own specific licenses; refer to

static/includes/_font-exo2.scss

@@ -0,0 +1,26 @@
+@mixin exo2-font($type, $weight) {
+	@font-face {
+		font-family: 'Exo 2';
+		src: url('/static/fonts/Exo2/exo2-#{$type}-webfont.woff2') format('woff2'),
+			 url('/static/fonts/Exo2/exo2-#{$type}-webfont.woff') format('woff');
+		font-weight: $weight;
+		font-style: normal;
+	}
+	@font-face {
+		font-family: 'Exo 2';
+		src: url('/static/fonts/Exo2/exo2-#{$type}italic-webfont.woff2') format('woff2'),
+			 url('/static/fonts/Exo2/exo2-#{$type}italic-webfont.woff') format('woff');
+		font-weight: $weight;
+		font-style: italic;
+	}
+}
+
+@include exo2-font('thin', 100);
+@include exo2-font('extralight', 200);
+@include exo2-font('light', 300);
+@include exo2-font('regular', 400);
+@include exo2-font('medium', 500);
+@include exo2-font('semibold', 600);
+@include exo2-font('bold', 700);
+@include exo2-font('extrabold', 800);
+@include exo2-font('black', 900);