Difference in colour of active/inactive Buttons almost zero

The difference in colour of an active and inactive 'Craft-Button' is almost zero for me.

Please use a more intense or different colour instead of this light purplish !

It's even worse with the usable 'Item Names' at the left side of the crafting window. The usable items are just slightly brighter that the not usable. I wouldn't have noticed if I hadn't read something about 'lit up item-names' in another thread.
What else I might be missing?

It might be different for other people because of different graphic-cards...