I think, a long time ago I mentioned this already ... ;-) A frame on a Scribus-Document has - when active - a red-dotted border. When it is not active, the color changes to grey.
In my personal oppinion, this lines are looking a bit ... let me call it inelegant. Specially when you got a lot of frames on a page. I think it could not be too much work to change this red color to a more smoother one? And perhaps shrinking the border-width a little bit, just one or two pixel should do it? That would be great, and I think, that this little improvements can give Scribus a more professional look. Greetings, Tom
