Hello!
That's how I now have the newest version of Directory Opus 12.7, when I switch to tabs, watch the video.
I can not understand why the colors of the tabs are poured. Can I have something with a monitor or video card?
I can only guess what the reason may be, because I keep my Directory Opus settings somewhere from the version of Directory Opus 11, and I do not change almost anything. And for a long time, probably, it's time to reset all the default settings in the new Directory Opus and start to configure everything again, but you do not want to do it.
P.S.: I apologize for the machine translation from the Russian language.
That looks like you have different colors set under Preferences / Display / Colors and Fonts / File display background for the Background and Destination Background options.
Normally, Destination Background is set to "transparent (no color)", which means the Background color is used for both states.
I put such settings as you wrote me, but it did not help.
Probably machine translation could not convey the whole meaning of the topic.
Here I made a screenshot, where I showed what to pay attention to the video.