This is what UserStyles were missing — an easy-to-use visual editor to "ZAP ⚡" elements on a page, change the visual style, and then share your creations with the world!
Would love to see more powerful additions to Boosts — that are programmatic in nature — but I understand that there are bountiful security concerns when building in the browser space.
Still... one can dream!
• How to use Boosts
• Known issues
