Placed an order for one of our boards designed in EasyEDA Std that has potting cutouts in the middle of the board to allow potting compound to seep through the board.
Received feedback from JLCPCB asking if I wanted the cutout to be to the outside of the gerber lines or the inside, when the outside of the cutout should always be the center of the line.
Here's JLCPCB's rules on board cutout lines in the Gerber Files per their response
Here's the lines generated from EasyEDA std when using "Board Cutout"
Here's the layout in EasyEDA Std