Rounded corners on text frames in FrameMaker...

Other than with the graphic tools, FM doesn't cleanly support RRs, such as for tables, text frames, or frame generally. Some other WP/DTP apps do.

In a prior career I had to use drawn or imported RRs in-frame during a fleeting period when the enterprise styleguide demanded it. It was replaced by rectangles shortly thereafter, but they also switched to pallid pastels and an illegible core font, just to sustain the pain.

I predict that by the time FM gets comprehensive RR capability, the art directors of the world will have decided that the corners really need to be hyperbolic arcs, with drop shadows, central radial gradients and a subtly throbbing glow.