Hello, I use random textures overlay through ctm and since I switched to sodium for performance, I am trying to convert everything in my resourcepack to something compatible.
I have a file like this:

matchTiles=dark_oak_leaves
tiles=0-6 <skip>
weights= 1 1 1 1 1 1 1 100
method=overlay_random
connect=block
biomes=dark_forest

but it doesn't show anything using this method I used with Optifine.
Is there an alternative I could use to achieve the same result?

Please provide a log. I might know what the issue is but I need to confirm it.

Oh, when I launched it now, to get the log, but wasn't using any other mod than yours, it worked.
When I use just fabric api, your mod and sodium, it breaks completely, meaning all blocks with overlay just display as the missing texture, when I add Iris, lithium and indium, it doesn't show missing texture, but doesn't work either,

If you are using Sodium, you need Indium. Additionally, Continuity 1.0.3 does not support Sodium alpha 6 or higher, but this will be fixed with 1.1.0.

oh, ok. That's probably the problem.
Just out of curiosity, what is the breaking change with new Sodium?

WorldSlice#getBiome was removed in alpha 6, meaning that any properties files using the biomes property are effectively ignored.

is there any available replacement?

You can either use alpha 5, build the repository yourself, use a build from Github Actions, or wait until 1.1.0 is released.

ok, thanks