Change screens color temperature

[Matthias Treydte]

> installed "Redshift", a tool to change the color temperature of your
> screen according to the time of day:

> Sadly it's only implemented for Xorg, so I can't "make an app" that 
> uses
> redshift on Jolla.

Redshift already has a "drm" module, which might be compatible with 
weston. I just tried it with

> redshift -v -m drm

which does give promising output, but does not change the color 
temperature. That is, at least with i9x5 hardware something seems to be 
missing. But there's hope!


regards,
-Matthias