[Gambas-bugtracker] Bug #1985: Slider control display is error in gb.gtk.

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.1985&from=L21haW4-

Comment #1 by 梁炜:

The effect of the display is related to the selected control theme. GTK is weird.In some themes, Slider control is not shown at all.