Get rid of white border ON MY SECONDARY DISPLAY.

I use Survey a lot too, and the border sometimes bugs me too. But I might have found a workaround to at least change the border, in one view and not the other…but only indirectly.

The border color depends on the background color setting. On darker backgrounds, the border is light. On lighter backgrounds, the border is dark. So one thing to try is: Right-click the Survey background in either window (or Control-click if right-click isn’t enabled on your Mac), and in the context menu that appears, choose a tone that gives you the least annoying border depending on the backgrounds of your photos. For example, if you’re generally culling dark photos, you may want to set a lighter background so that the border goes dark and blends in with the images a little better.

When playing around with this, one nice thing I wasn’t expecting is that you can actually set a background color in the Secondary Display window that’s different than the background in the application window! You can see that in the screen shot below, which shows each window set to a different background color, and therefore having different borders.

It isn’t a perfect solution but that’s probably the best you can do, because in Survey there’s currently no way to disable or directly control the border. It could be submitted as a feature request in the Ideas section here, if it isn’t already being voted on in there.

Check the view of that display. Sounds like you are not using Loupe view, but another view.