In parallel with #1 and #4 it makes sense to play with the experimental theme JSON file called experimental-theme.json.

https://developer.wordpress.org/block-editor/developers/themes/theme-json/

Requirements

• Try to use experimental-theme.json to define the colours and font sizes for blocks such as paragraph, h1-h6 to match the current settings in genesis-a2z
• Improve styling of blocks where I'd noticed problems while populating the block catalog.

Solution

Notes

• genesis-a2z's style.css was 1800 lines, with very little, if any, custom styling for blocks.
• I wondered how much styling I'd have to put into style.css and how much could go in the JSON file