The outlines of Slime Chunks and some other structures are rendered strangely in fabulous mode.

Affects Version:{
BBOR: BBOutlineReloaded-2.2-1.16.1-fabric,
Fabric: fabric-loader-0.9.0+build.204-1.16.1,
Minecraft: 1.16.1
}

As a comparison, this is the render in 'Fancy' mode:

This is much better in 2.3 release...

The issue mentioned before has been resolved.

However, there are still some problems. The "fill" of "Slime Chunks" rendered incorrectly in fabulous mode.

Looking aside in fancy:

In fabulous("fill" is on, just not rendered):

When I flying trough the border, only part of it is rendered:

Other Borders also have the same problem.

Affects Version: {
BoundingBoxOutlineReloaded: 2.3-1.16.2-fabric
Minecraft: 1.16.2
Fabric Loader: 0.9.2+build.206-1.16.2
Fabric API: fabric-api-0.19.0+build.398-1.16
}

Yeah the fill is something I’m aware of. Not a lot I can do.

masady's MiniHUD doesn't have this problem in Fabulous! mode though, so it is possible to get opacity levels in that rendering mode. (If you see the slime chunk all opaque in MiniHUD, it's because you have to set the alpha level of the slimeChunkOverlayColor to something other than 0xFF20F020, something more reasonable like 0x8020F020).