In #5348 I've been working towards custom form validation errors for required Form API elements via a
#required_error property. I believe that we should also allow people to customize the default "This field is required" text added to the "required" indicators (red asterisks) for fields added to content types and other entities:
We already have a "Required field" checkbox available in when specifying field settings:
What I would like us to have is: - a text field "tied" to that checkbox (hidden by default - shown only when the "Required field" checkbox is ticked), to allow people to customize the default text. - another text field "tied" to that checkbox, to allow customizing the validation error message for that required field.
I have used it in Drupal 9, but not in Backdrop. One thing I've done is create a CKEditor style in the Style List when editing a filter. And make it something like a.button-primary|Button Primary....
CKEditor Color Button module
There is a backdrop module called Address Field that supports addresses in various countries. You can use Feeds to import a list (such as a CSV file) into nodes, taxonomy or other entities.
Importing a list of terms
OK - for admin themes - seven and lumi and probably your safest options
Can't configure custom view