Automatically invalidate pixmap cache after theme changes

[Marco Martin]

On Friday 08 February 2013, Martin Gräßlin wrote:
> Hi all,
> 
> from several users I got the feedback that after upgrading to 4.10 the
> Plasma theming was completely broken and I also experienced that when
> first switching to the new theme. The users reported that removing
> /var/tmp/kdecache-USERNAME solved the issue. That's of course a little bit
> too much, but we should be able to do something to improve the experience.
> 
> What about shipping an update script to invalidate the cache when we
> changed the theme? Would that be possible? What would be the drawbacks? If
> it is feasible I'd suggest that we inlcude a script pretty fast, so that
> it is in 4.10.1.

actually theme was supposed to do that internally when the version number in 
its desktop file changes...
for some reasons seems it didn't work :/

don't know if the problem was in plasma or in pixmapcache...

Cheers,
Marco Martin