You can vary the theme of the icon according to your needs and taste. Stroke, icon rotation, background colors and gradients, borders, font shadows; there is a multitude of options available for your use on Iconion. The widely popular Twitter’s Bootstrap interface has allowed the use of Bootstrap icons on the site.
Bootstrap is among the web's most popular free open source tools, used for developing websites and other online elements, such as creating icons, buttons, forms and other elements online. Twitter's Bootstrap interface enables users to insert various Bootstrap icons, ranging from retweet icons, to arrows, hearts and stars and other symbols, also called glyphicons. You can also include a bit of CSS color code to display the Bootstrap icon in a color other than the default black.
Free download for Windows and Mac!