How to show only names in Structure Tool Window?

Hello!
I really like Structure Tool Window and keep it open most of the time - this gives very fast class navigation and general insight!

However I can't find how to turn off unnecessary data display there.
It would be much better if it only contained icons and names. All these parameter names, types, return types - there is so much data that everything becomes heavily cluttered.
99% times I don't need that data there, and even when I do, it isn't really readable because of the length limit, so I have to check it other way. That neglects the whole purpose of it being included there, for me.

These data also makes the most important part - property/function names - harder to read (because for the clutter, it takes time to see where name ends and other data begins, and you do it for each line, since there is no data padding, too).

Or maybe there is another Tool Window that I missed for this?
I also tried using Project window with 'view members' but it isn't comfortable too.

Or maybe it is possible to set special color in UI color scheme for this?..
I think I checked all settings by now.
Help please!