When the XFCE Panel is made taller than a certain height, usually 36 pixels (oddly, this seems to vary with the selected GTK theme at times...) it automatically goes to two rows for its task list display, and three at around 50 pixels. Would it be possible to add a setting to customize how many rows appear? Say, a "Maximum Number of Rows in Task List" somewhere? Useful for people with bad eyesight and high resolution screens...
Yes I know, will be fixed in the new panel.
It will be possible to set the max button size using gtk style properties which will result in a configurable number of rows. http://git.xfce.org/nick/xfce4-panel/tree/docs/README.gtkrc-2.0
Devel branch has been merged in master. A 4.7.0 release will follow soon. If you think this bug is not fixed? Feel free to reopen the bug.