About new theme, As for me some texts have become less clear, more pale and more badly readable. so it makes me strain my eyes to look through the titles. As a designers work it is very cool, and as my everyday tool it got some worse for me. It's only my opinion, may be I'm wrong. BTW I work at fullhd laptop and Qt creator doesn't allows me to grow up my menu- and toolbars fonts, so the texts look quite small.
Some images for example: the old theme and the new one.
14_0.png15_0.png
14_1.png15_1.png
14_2.png 15_2.png
14_3.png 15_3.png