Tracking: Refining Border Controls

[aaronrobertshaw]

This issue aims to map out what may be required to implement the proposed border control refinements in #35602.

Additional background on the process behind the current border controls design can be read in the following post:
Thinking Through: WordPress Border Controls

Potential Tasks

• Update block support to allow individual borders per side
• Update theme.json and global styles for individual borders
• Create new border control as per #35602
• Finish off API to access global styles values within the block editor
• Leverage new API to apply global styles values as defaults within block support controls
• Move border radius to Dimensions panel and rename to "Radius"
• Update the ToolsPanel to allow toggling of single control via +/- icons

Future Considerations

• Border image - will this be an alternate state for the new border control or its own control?

Historical Links For Context

• Border Panel: Combine width and style in panel menu #36942
• Borders: Switch to ToolsPanel for displaying UI #33743
• Refine border control panel with design tools #31337
• Block Support: Update border support UI #31585
• Support for border properties  #29616
• Block Supports: Add border color, style and width support #30124
• Allow borders on image, group, cover blocks #21540
• Add: API to allow blocks to access global styles. #34178