[Nez framework] Possibility to set 9-slice sprites to tile instead of stretch?

I want to use 9-slice support in Nez to set up some panels that would act as a background for game’s logo in the title screen and so on.

However, the default rendering behavior of these makes “middle” sections of 9 slice sprites stretch, which doesn’t look nice at all:

How can I make it so that the middle sections are tiled instead of stretched?

Any help with that thing?

Can someone help me with this? As it is now, it looks awful.