This page contains the Notification vector icon, as well as variations of this icon in different visual styles, and related icons. All icons are in the flat vector style, however, differ by the line thickness, fill, and corner radius.
We've received the idea on November 26, 2012 and created the icons on February 24, 2013
A set of icons for viewing a calendar/schedule, appointment reminders, recurring appointment icon, "show as" icon, categorize icon, along with priority icons (high, low and private). See this screenshot for concepts: