Fibery banner announcements look poor in desktop app (dark mode)

I use the desktop app in dark mode on Windows. Today, a bright, light blue banner appeared at the top of the window which white text, so it was barely readable. But I’m guessing it was for the occasional Wednesday seminars that Fibery does.

So, the banner didn’t look that nice and was a bit difficult to interact with because of the “white on light blue” situation. It took me awhile to find the “x” to close it. Another color scheme or another way to make these announcements would be preferred.

Edit: It appeared again, and I remembered to take a screenshot: