I bring you - the parametric/customizeable flash light (and other lights) dome diffusor!
The diffusor turns your single-point flash light into a diffused, spread out light source.
Handy for working on things, or if you want to light up a wider area.

Simply enter your light's outer diameter into the generator and you'll be given a model made spesifically to size.

Suggest PETG or other high temp materials as the heat generated by your light may cause warping in PLA.
I have only tested this with white, as it's meant as a diffusor, not as a filter. You may possibly be able to print this in other colors for it to work as a diffusor/filter like red, blue etc.