How To Smudge And Not Lose The Color?

[Ofnuts]

(07-24-2018, 07:18 AM)abrogard Wrote: adding layer in adequate mode ?  What's that?  Just add a layer?

Then what?  Paint with what?  Use color picker to select the specs frame color, is that it?  And paint with a brush?

I'll try it...

If you set a layer to Value mode, the resulting image is everything below it darkened/lightnened to assume the "value" you have set for the layer. 

Paint is done with pencil/brush/ink/airbrush... it is just a matter of assigning values to pixels.