The sidebar of my Apple Calendar app suddenly changed colors! Does anyone know how to change it back?

Hi merlinapple,

I did try to close, force close, and even restarted the computer. No change.

I did notice one strange behavior. When I'm in a non-full screen window, the normal slate gray/black color applies to the sidebar. However, when I use the application in full screen mode, the sidebar changes color.

Another possibility is that the sidebar is adopting the color at the edge of my background. I wonder if that is the intended behavior or a bug? If it is intended, is there a way to disable it?

Thanks for the response. I'll keep investigating until I figure out what is going on!

It does it in light and dark mode- on my account and all others. It seems to be linked to the property of the sidebar having a smoked glass effect- taking on some of the colors of the background. In full screen mode, it might be taking on the average color of the left edge of the screen perhaps? I tried it with a different desktop and it took on a light gold appearance. With the standard Monterey 12.3 background, it appears light purple, as depicted before.

One interesting thing I noticed, it seems to revert to its previous non-background-color-absorbing in windowed mode, but when I'm not actively using that window. In other words, when it is on the desktop, and I'm using other applications, or just actively engaging the desktop, it uses the original color scheme (though somewhat altered to reflect its inactivity).

Additionally, it takes on the original color during the in-between animation when switching from full-screen to standard windowed mode. When the in-between animation is complete, it once again takes on the smoked-glass-active-window-partial transparency of the full-screen mode.

I embedded a youtube link to show the issue in light mode. In the video, the initial color and final color are different from the color the sidebar takes in the animated transition. The color during the transition appears to be the original color of the sidebar before this issue developed.

I'll try to add a reply with a recording of the same issue in dark mode.

Sorry for so many replies. I'm not sure any of these links are embedding into the posts. Just in case, I'll try to add them in the text box.

Light mode with sunset background: https://youtu.be/hJqK4QjvKr4

Dark mode with sunset background: https://youtu.be/f-93emBt5-Q

Dark mode with Monterey background: https://youtu.be/eN0vb_QxBt4

Ah- bummer, but thanks for letting me know.

It only started doing that recently- though I'm not sure what could have triggered the change.

If it is expected behavior, I guess I'll try to get the original scheme "back" by changing my desktop image to slate gray.

Here is an embed of the dark mode behavior- same issue.