Black Theme missing (actually grey)

Also, there is a black (actually grey) theme missing. Also voting for this. It should be standard to have black (grey) / white themes as basic themes.

Tabs are colliding. As you can see in the image, the background shape / color is directly connecting with the bacckground shape of the tab nearby. This is graphically not good, or even incorrect. There should be a little bit of space in-between these tabs.

Why doesn't the link page (sorry, don't know the name in english) have the links centered? It is looking weird for a graphics designer, because the search bar is centered. Should be centered. If not, there shoudl be an an additonal option to center it.

When adding a website to the bookmark bar, the text which is already marked is totally black. Also, when I mark any form field by hand, the text gets totally black. I am using one of the dark themes.

Didn't anybody from the staff of Opera test the UI? Unbelievable.