Code review comment for lp:~nordfriese/widelands/workareas

Looks very good :)

I wonder why the little stars are missing on the border? For an enhanceable building the stars are at the edge of the bluish area. E.g. compare the workarea when trying to build an empire Outpost the stars are at the edge of the bluish and red area, then try to build an empire Barrier (the one which the Outpost can be enhanced to) on the same spot the stars are one node inside the bluish area.
For farms the stars are also one node inside the bluish area, so not showing all the nodes where fields can be planted.