Icicle is a UI Kit based on the Zurb Foundation Framework v6. It has a clean, bright design, with buttons that just beg to be clicked. It is perfect for apps or sites where you want a sleek, modern look. It includes all standard Foundation components, carefully styled to make a unified and coherent theme, as well as some extras.
Includes 17 HTML templates to get you started, including an admin dashboard.
Has SCSS files to make it easy to customise. You can also modify the CSS files directly.