GMS 2.3+ Changing pallets


I wonder if there was a cheaters code for changing palette of the screen of the game?
Because I discovered the retro palettes swapper is pricey, so I wonder if there is an alternate way to make the shader that works like pixelated popes.

I wanted help making a replica of the pallet swap code for this


((I kind of accidentally posted on that forum... Can you guys help change that... please?))


Firehammer Games
I feel more like making it yourself is the "legit" way and purchasing it pre-made is more like "cheating" as such. That said, I see nothing wrong with "cheating" in this instance because time has value.