Option for different validation feedback types (success, warning)

Sometimes you want to explicitly show a user that their input is valid. Sometimes you want to warn a user that there might be something wrong with their input, but it's not wrong enough to show them a big angry red validation error.

In short: sometimes you want to show validation feedback on an input field that is not an error.

I would like to suggest introducing a 'Type' attribute to the Validation Feedback action, so you can define different types of validation feedback, like success, warning and error (and style them separately!), for different situations.