So I've been modeling the UX/UI and I've found some things that could be added:
* Radio Buttons: Yes it's the "same" as the checkbox but normally are more circular
* Tabs: This one is one i actually had to improvise as I needed something similar to it but I think it's one of the core components of a UX/UI.
Also as a side note, maybe because I'm from a web development background (mostly Backend) and I'm kind of use to bootstrap, I found myself missing some pallet/theme references to secondary colors or, "opposite" colors, for example in my case I wanted the "cancel" or "delete" to not be the "orange" color but something align with the theme that would indicate that.
This last one is most likely an issue on my side as I have limited to none background in designing (and being used to Bootstrap) so ti's hard to find colors that look good on the pallet and do not make your eyes cry haha