This repository is holding all custom form fields.
Available custom fields
Every form field is in it's own directory with instuctions to usage. Please see stucture of this repo.
How to add custom form fields?
To add a custom form fields, you should add your fields directory to include path.
For example:
JForm::addFieldPath(PATH_TO_MY_EXTENSION . '/fields');
For component, it usually means
JForm::addFieldPath(JPATH_COMPONENT . '/models/fields');