Created attachment 3218 Big icons in small panel If panel size changed, icons not change its size (see attachment). If application are closed (not all 100%, but 50% with 4-6 icons), icons start jumping in tray and will stop only if extra icon in tray appear (replace closed app)
Created attachment 3235 Very small icons in panel
Created attachment 3247 Microscopic icons I have the same problem, but in my case, the icons start out from normla shape, but after 2-3 changes they go down to what is seen in attached picture
Created attachment 3248 Only way to make them visible This is the only way to make them visible... Even increasing panel height to maximum doesn't do the trick
I have my panels set to 40px. I can confirm this shrinking icon issue. Unfortunately, the tray icons start out about half the size the of the normal panel icons, and they seem to shrink and grow at an undetermined rate. In 5 hours, mine shrank to invisible. the remaining icons reamain, but the tray icons disappeared completely and did not return without a restart.
Should be fixed in ad5a85c (xfce4-panel-4.7.7 once released) please reopen if the bug is still reproducible with this panel.
Snapshots for testing: http://foo-projects.org/~nick/packages/xfce4-panel-4.7.6git-c37dd16.tar.bz2 or wait for xfce4-panel-4.7.7.