This is the StumbleUpon icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
Idea of StumbleUpon Icon by Anonymous
We've received the idea on July 18, 2012 and created the icons on July 22, 2012
I know some have been already posted, but this unifies all of them plus more. 1. Soundcloud 2. Pinterest 3. Stumbleupon 4. Wikipedia 5. Instapaper 6. Tumblr 7. Dribbble