Added provider-aware merge-tag selectors for button URLs.
Added toolbar controls for linking selected text to merge-tag URLs.
Redesigned Social Links controls with collapsible link panels, reordering controls, and a simplified add-link workflow.
Improved social icon alignment and rendering consistency in both the editor and generated emails.
Improved email preview sizing, scrolling, and automatic iframe height across desktop and mobile modes.
Refined the email editor canvas with a focused 600px content area, zero outer padding, and a locked content region.
Removed the post title from the email editing canvas.
Repositioned Email Styles settings above template source controls for easier access.
Added sensible manual email-style defaults for new installations while preserving settings on existing sites.