Bunch of css properties missing

[Jlll1]

I've been noticing that there are some css properties missing in Sutil, for example align-items, place-self etc.
I wonder if this is done on purpose? Is Sutil trying to limit the CSS api, push the developers towards certain approaches, while not exposing the others?
If not, then then adding missing CSS properties to Sutil is something I'd gladly investigate and implement.

[davedawkins]

I think it's because Feliz.Engine needs updating. Sutil is definitely not trying to limit the API. Thank you again for your interest and offer to help.