systray icons used to adjust to the size of the containing panel, but they don't any more. this is probably is not really visible to those using a default size panel on a standard DPI screen, but if you like thicker panels and/or use a high-dpi screen and need to readjust the size of the panel, system tray icons look weirdly small. Reproducible: Always Steps to Reproduce: 1. Make your panel taller 2. Look at the systray icons Actual Results: small icons Expected Results: panel-sized icons this is on Neon (on Kubuntu) , currently using plasma-desktop @ 5.5.4+git20160311.0122+15.10-0
*** This bug has been marked as a duplicate of bug 360333 ***