• Properly position margin elements (#5289).
• Improve chrome detection for MacOS (#2214).
• Correctly hide section numbers in responsive HTML view of books, when requested (#5306).
• Properly handle figures within lists (#5317, #5461).
• Do not hide banner style title block when in responsive view (#5296).
• Ensure global environment is available to LUA filters (#5466).
• Ensure RevealJS navigation works properly even when there is a section called 'Theme' (#5455).