Note: The ‘Pro’ in the name of this font should not be interpreted as having OpenType features. It has none.
What was the inspiration for designing the font? Inspired from the basic shapes like circle, cube and triangle. Closer to basics means more useful in various projects.
This fonts are authors' property, and are either shareware, demo versions or public domain. The licence mentioned above the download button is just an indication. Please look at the readme-files in the archives or check the indicated author's website for details, and contact him if in doubt. If no author/licence is indicated that's because we don't have information, that doesn't mean it's free.