Extension Manager

Edit the alias list
Turns BBCode into HTML
Allows admins to modify & set custom <head> content
Allow users to favorite images
Handle JPEG, PNG, GIF, WEBP, etc files
Use an additional stylesheet on certain holidays
Show various forms of link to each image, for copy & paste
Allow users to make comments on images
Show a list of uploaded posts
Allow users to rate images "safe", "questionable" or "explicit"
Add titles to media posts
Show various bits of system information
Allow images to have tags assigned to them
Sitemap with caching & advanced priorities