- * overview shading to be recalculated. this could be changed to something
- * more expressive that indicates what actually has changed, so selective
- * redraws can be applied
+ * shading in overviews and structures to be recalculated. this could be
+ * changed to a something more expressive that indicates what actually has
+ * changed, so selective redraws can be applied (ie. only structures, only
+ * overview, etc)