Re: [PATCH] gitk: Fix crash when not using themed widgets

> When configured not to use themed widgets gitk may crash on launch with
> a message that says that the image "bm-left disabled bm-left-gray"
> doesn't exist. This happens when the left and right arrow buttons are
> created.
> 
> The crash can be avoided by configuring the buttons differently
> depending on whether or not themed widgets are used. If themed widgets
> are not used then only set the images to bm-left and bm-right
> respectively, and keep the old behavior when themed widgets are used.
> 
> The previous behaviour was added in f062e50f to work around a bug in Tk
> on OS X where the disabled state did not display properly. The buttons
> may still not display correctly, however the workaround added in
> f062e50f will still apply if gitk is used with themed widgets.
> 
> Make gitk not crash on launch when not using themed widgets.
> 
> Signed-off-by: Marcus Karlsson <mk@acc.umu.se>