@Tihiy I believe this bug/issue with Dark Magic hasn't been reported yet, but it's very annoying, and I hope you can try to fix it. Opening 7-Zip, WinRAR, NanaZip results in the top bar text being black. If you hover over the text, it changes to the correct white color, or you can also minimize and reopen the minimized app window, which will temporarily fix it. Fully relaunching the apps will result in black text once again.