Please make those borders darker

i am new here. Browser as you can see is the latest in Opera.
I believed the “custom input” had to be clicked in, but it wasnt accepting clicks, since the box was unchecked. Couldnt see the check-box until i used inspection tools.

TIL: learnt that not giving any inputs(custom or not), triggers SIGTSTP

I use opera and I face no problem seeing that.

Tried changing my laptop’s contrast, tilted the screen backwards, tried everything buddy. You got some healthy eyes!

Only after editing the page’s css for a darker background, i can see all light borders, like the comment divs. And again… the checkboxes. These have to be changed to arleast be like bottom border of this page’s header