Former subplots should be more visible

[aostrow]

• bigger default width (=3) is already introduced

• keep width if greater than 3

• check if other DashPattern is more useful (e.g. for line strings)

code is here:

Module_ResearchAreaManagement/BExIS.Pmm.Model/Plotchart.cs

Line 662 in 9f0a352

if (geometry.Status == 2)