Adjust Segoe UI's baseline (#863)

Author: aaronshekey

lib/css/exports/_stacks-constants-type.less

@@ -13,9 +13,70 @@
 //  ============================================================================
 //  $   FONT FAMILY (ff-)
 //  ----------------------------------------------------------------------------
+
+// Add Segoe UI Adjusted as a font family, and adjust its baseline
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI);
+    ascent-override: 95%;
+}
+
+// Segoe UI is variable, but only in Windows 11, so add all the variants
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Italic);
+    ascent-override: 95%;
+    font-style: italic;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Semibold);
+    ascent-override: 95%;
+    font-weight: 600;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Semibold Italic);
+    ascent-override: 95%;
+    font-style: italic;
+    font-weight: 600;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Bold);
+    ascent-override: 90%;
+    font-weight: 700;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Bold Italic);
+    ascent-override: 95%;
+    font-style: italic;
+    font-weight: 700;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Black);
+    ascent-override: 95%;
+    font-weight: 800;
+}
+
+@font-face {
+    font-family: "Segoe UI Adjusted";
+    src: local(Segoe UI Black Italic);
+    ascent-override: 95%;
+    font-style: italic;
+    font-weight: 800;
+}
+
 @ff-sans:
     -apple-system, BlinkMacSystemFont, // San Francisco on macOS and iOS
-    "Segoe UI", // Windows
+    "Segoe UI Adjusted", "Segoe UI", // Windows
     "Liberation Sans", // Linux
     sans-serif; // The final fallback for rendering in sans-serif.
 @ff-serif: Georgia, Cambria, "Times New Roman", Times, serif;