Hi, I'm developing a mac status bar app and most of the time when I run it the sliders have that blue tone on the knob which is, normal. Sometimes, however, when I run it the blue knob turns grey. Everything still works perfectly it's just grey. And when I copy the .app from the build folder to my desktop for example, in the build folder it's blue but on my desktop it's grey. Not a problem or anything, just a bit weird... wonder if anybody knows why? Thanks, Ash EDIT: I think I know why this is happening. When my window is at the front and made key, they're blue but when my window isn't key... they're grey. I'm not sure how to make them constantly blue though without having to make the window key?