Passing color to the augment line in matrix (#2281)

crates/typst-library/src/math/matrix.rs

@@ -378,6 +378,7 @@ fn layout_mat_body(
     let default_stroke_thickness = DEFAULT_STROKE_THICKNESS.scaled(ctx);
     let default_stroke = FixedStroke {
         thickness: default_stroke_thickness,
+        paint: TextElem::fill_in(ctx.styles()),
         line_cap: LineCap::Square,
         ..Default::default()
     };

tests/typ/bugs/mat-aug-color.typ

@@ -0,0 +1,9 @@
+// https://github.com/typst/typst/issues/2268
+// The augment line should be of the same color as the text
+#set text(
+  font: "New Computer Modern",
+  lang: "en",
+  fill: yellow,
+)
+
+$mat(augment: #1, M, v) arrow.r.squiggly mat(augment: #1, R, b)$