Dropdown Formatting

Hi Forum,

I have been experimenting with dropdowns and find the AppSheet facility most interesting.
I have two questions
In the attached sample
https://www.appsheet.com/samples/How-to-ordersort-the-values-in-dropdowns?
there are two formats that I am having difficulty replicating
appGuidString=0d0fee2c-b211-4606-b7e0-9925581c187c

  1. How do you get the BORDER formatting of the dropdown box as achieved in this sample?
  2. How do you sort the dropdown items in ascending order
    Hope somebody can help.

Dick