There are plenty of FREE online mixers as well: CSS Gradient Maker
@Jack, I am disappointed your avatar is not a palm tree or beach scene. You need a Blog or Tumblr for your Pinegrow diary, to go with the microphone you need for your videos. 
Given this threads curiosity and view count, I hope the Pinegrow team takes seriously the suggestions for Components and Blocs that have been provided. It appears in general there is strong interest in these areas of the app (as all the related threads have high view counts). So I would hope it’s given further thought for Components & Blocks – Automation , Available as Library , Sharing etc., as it seems people are interested in these aspects of the app. I think as more people migrate to Pinegrow from other apps these will be key features along with other aspects being improved.