1) install Corel Painter 2016 with one of this serials

PF15R68-N4XHGTG-MWLLE37-M66GFNW
PF15R87-ZPV28EC-8379NWZ-NRRF9PQ
PF15R60-4JFTKKA-YBWNQXC-V348F3Y
PF15R72-JTFEN7E-ALHE4Q5-LEBHSEY

   (or generate one from the windows keygen)

   BUT don't start the program

2) go to applications\corel painter 2016
3) right mouse click on application and select show package content
4) go to contents\macOS and replace the binary with the cracked one
5) start Corel Painter 2015 and enjoy it


if you started the trial before go to users/shared and delete the .arvato folder
the back to step 2

