Comment by strogonoff

Thanks for the insight. My script targets a solo dev such as myself, but crafting icons is always superior.

As a designer, the way I recommend to do it is not by tweaking icons but by having a specific process separating design from deliverables. Define branding language, come up with your symbols and marks and mascots and their use guidelines, and then prepare deliverables based on that. Icons intended to be used at extremely different sizes (16px vs. 512px) and in different contexts are different deliverables.