You could have downloaded PWStyleHTMLField 2.0 for Mac from our software library for free. The software relates to Developer Tools.
From the developer:
PWStyleHTMLField is a crucial companion for users who work with styled text.
Looking for a way to turn stylized text from a REAL Studio/REALbasic TextArea or styled EditField into HTML? Here's a set of classes that handles it for you. It makes producing HTML and HTML emails extremely simple.
You may want to check out more Mac applications, such as The Colors Of The Rainbow or silex, which might be similar to PWStyleHTMLField.