I am working on a software where the UI is designed by a manager instead of UI experts. This has lead to many problems and inconsistencies in the visual design, user expectations and standards of the host OS are broken etc etc.
Now, the latest crime (in my eyes) are huge triangles for opening/closing of combo boxes. Combined with a thin font, this puts the weight all on the triangle, the actually important part (the name of the selected item in the combobox) is de-emphasized. If you take a screenshot and blur it, everything reduces to background color except for large blobs of foreground color where the triangles are.
I am asking here since I'm no expert either.
Are there recognized guidelines for such visual indicators, their size and weight?
Is there a agreed-upon measurement for these things?
The host OS is Windows, the design seems to be inspired by metro / win8 style, but we're on Win7 using WPF.