Manatee UI is an open source React component library focused on unconventional 'pretty' components that are completely customizable. Tested with React Testing Library and Jest.
Check the live playground for each component including its documentation on the library's bit page: https://bit.dev/lietsaki/manatee-ui
Make your bundle smaller by including only the components you need instead of the whole library. For example, to download ui-button1 with npm, you can run:
npm i @bit/lietsaki.manatee-ui.ui-button1
See the snippet to install each component in their bit.dev page!