Themes restarting

[Karataso]

I am tryna install simplebounce theme, everything works well, the theme does apply as it should, but when I close the game, and re open it, it switches back to default theme..
Does anyone know why it happens?
(Liquid bounce nextgen 0.16.0, Minecraft 1.21.1, Arch Linux)

[kawaiinekololis]

LiquidBounce Nextgen does not currently set themes permanently, as the client base is still being tested and modified and we can't be sure that the third-party themes are compatible enough not to break someone's client.

However, once we get past this point, it will be possible to set themes permanently.