--- a/src/Tools/Graphview/visualizer.scala Mon Jan 19 16:31:04 2015 +0100
+++ b/src/Tools/Graphview/visualizer.scala Mon Jan 19 16:38:01 2015 +0100
@@ -168,5 +168,7 @@
else
Node_Color(foreground_color, model.colors.getOrElse(node, background_color), foreground_color)
- def edge_color(edge: Graph_Display.Edge): Color = foreground_color
+ def edge_color(edge: Graph_Display.Edge, downwards: Boolean): Color =
+ if (downwards || show_arrow_heads) foreground_color
+ else error_color
}
\ No newline at end of file