Plasma Mobile - How supposed to change screen brightness?

[bcnaz]

There is an "Energy" setting, but that is for screen dim and lock. I think best to do updates in SSH. I have noticed many distros will fail in the GUI.

I also have the Manjaro Phosh on the eMMC card , and I the modem will shut down after booting, and unlocking the screen.

....  yesterday when I tried Plasma,  it said no modem detected,  * but it still made and received calls and did 2 way texts  ? ?
        I tried multiple separate times to put in my APN information,  * but it kept  reverting to it's original settings.

The appearance is quite impressive,  ... but function, not so much....   (actually disappointing and frustrating)

* Curious :  Why did they do NOT include screen brightness in the "Settings" ?   *<(Perhaps it needs it own separate App.?)>

 ***  I would think "Seeing the screen" should certainly be a Priority item.