CodeGrue

pickerAreaHeightPercent: 0.7 -> I have no bottom section pickerAreaHeightPercent: 0.5 -> bottom appears but it about 20% of height pickerAreaHeightPercent: 0.3 -> proportions are as expected

ETA on this as it generates an XCode warning?

Just in case it's relevant, I found this in my OBS log file: [obs-ndi] CPU unsupported by NDI library. Module won't load.

locale is coming from the system's setting, you want to manually pass in a value?

Did you try setting the theme colors that affect chips? I assume they inherit from the overall style.

Like two independent lists side by side?

It appears flutter only provides autofocus for text fields: https://flutter.dev/docs/cookbook/forms/focus I am wondering if a hidden text field next to the pickers could be tabbed through, and tabbing a second...

I'm kind of at a loss on this one. Would autofocus on a picker automatically pop up the dialog? The closing that would pop up the dialog for the next...

Looks like focusNodes may be the solution to implement this: https://api.flutter.dev/flutter/widgets/FocusNode-class.html

Are you checking for empty string also in your validation?