I go to Create New SmartApp and choose From Template.
Select ANY in the list except “Color Coordinator” or “Curb Alert” and the template changes. Select either of those and no change.
Logged out, quit Safari, went back in, no change.
I see this is an ongoing problem:
Can’t use the suggested workaround in that thread because there doesn’t seem to be a “color coordinator” smart app in the github repo!