--plasmathemeextended is going to provide all the
functionality that current plasma theme infrastructure
does not. Such as roundness and dark/light color schemes
--when the user changes wallpaper there is a chance
that the lastScreen has the same value with the old
one. In such case the wallpaper must be updated.
--enhanche the dynamic background feature and
in ordre to improve contrast with the underlying
background Latte now calculates the luminosity of the area
underneath the panel and based on that chooses the
best color to create contrast. The colors are chosen
only between textColor and backgroundColor.