MyBB Duende v3 theme (fully responsive)

Duende v3 theme fully responsive, free and open-source (GPL) for MyBB. Tested and works on MyBB v1.8.x.

Demo site

Fully responsive, reworked all the templates making it fully responsive on mobile/tablet
Added "Latest threads" on front page
Improved loading times, using defer/async where possible! Using the preconnect meta tag for further performance gains
Fixed login form for MyBB 1.8.x
Improved icons
Cleaned-up inline Javascript, put as much as possible into main.js (loaded async)
Converted to HTML5 syntax, with valid doctype and robot meta tag
1000+ styling fixes all across multiple CSS files
Fixed jQuery Tipsy
Homepage W3C validated (no HTML template failures only some obsolete warnings)