Sanity UI looks brilliant 😃 Is something like the current date picker possible at the moment? I’m not sure if an icon can be used within a select element, which is how the...

Glad you're enjoying Sanity UI! 😊

Yes, you can absolutely add icons inside input components like the date picker using the prefix and suffix props that are available on Sanity UI's TextInput component. While there isn't a dedicated DatePicker component in @sanity/ui, you can build one using TextInput with icons.

Here's how you'd add an icon inside an input:

import {TextInput} from '@sanity/ui'
import {CalendarIcon} from '@sanity/icons'

<TextInput
  prefix={<CalendarIcon />}
  // or use suffix for right-side icon
  suffix={<CalendarIcon />}
/>

The prefix and suffix props accept any React.ReactNode, so you can use icons from @sanity/icons or any custom React component. This gives you full flexibility to style your inputs just like the Studio's native components.

For a full date picker experience, you'd typically combine TextInput with a Popover component to show a calendar interface. The community has built several date picker implementations using this pattern - you might want to check out plugins like sanity-plugin-date-input or similar for inspiration.

The Autocomplete component is another good example of how Sanity UI combines TextInput with icons and popovers to create more complex input patterns - you can use similar patterns for building custom date pickers!