With Bootstrap Magic Create Your Bootstrap Theme Easily
Bootstrap Magic is a free and opensource web tool by which you can create your own Twitter Bootstrap theme for your web application or website.
recently Twitter Bootstrap also launched online customization features but Bootstrap Magic is far better than this as in real time only you can create your own theme without putting much effort.
It provides wide variety of theming options for all bootstrap elements or components, whatever change you will do while theming you can see the preview of it instantly.
After creating or customizing the theme you can instantly download the newly created theme with personalized CSS and Less variables in minified version.