Callisto is a library for use in Windows Store XAML applications (aka Metro style apps). The XAML framework in Windows.UI.Xaml is great, but has some functionality that isn't provided in-the-box in a few controls and APIs. Callisto provides added functionality on top of the XAML UI framework for Windows.

You can also read more under Frequently Asked Questions. Documentation for each control is always an 'in progress' thing (contributions welcome) but is on the Wiki page here.

So far Callisto includes:

• Rating - a ratings control for Metro UI
• LiveTile - an in-app tile experience to give you animated or 'live' tiles
• Tilt - an effect to provide the tilt experience when clicked on edges/corners
• OAuth helpers - a set of helpers to create OAuth 1.0 signatures/headers for those sites that hate OAuth 2.0 :-)
• BooleanToVisibilityConverter - a converter to well, convert boolean to visibility, very common use
• LengthToBooleanConverter - a converter to examine a string length to convert to boolean (simple validation helper)
• RelativeTimeConverter - a converter to show time as relative string, i.e., 'about an hour ago'
• Extensions - some extension method helpers (i.e., bind html content to a WebView)

What is in the plan (could always use the help):

• DatePicker and TimePicker - providing a globalized time/date picker control in Metro style
• Ratings - providing a rating control for Metro style
• Pivot - a UI interface for providing "tabbed" interface in a Metro style way

Note the following have been deprecated in the most recent release as Windows 8.1 introduces proper controls for these:

• Flyout - a primitive that includes positioning and 'light dismiss' logic
• Menu - primarily to be used from AppBar, contains the base for providing, well, a Menu
• MenuItem - an item for a menu, including separators and contains the command point for the menu item
• SettingsFlyout - an item to create a custom settings pane UI

There are two ways you can install the control.

Install as an Extension SDK via the Visual Studio Gallery - available within VS as well as downloading from the gallery directly

You can get the control via NuGet if you have the extension installed for Visual Studio or via the PowerShell package manager. This control is published via NuGet at Callisto.

Controls are individually documented with examples for usage on the Wiki Documentation.

Great, please log a bug so that it can be tracked.

• Tim Heuer (@timheuer) - for the initial conception of the toolkit.
• Morten Nielsen (@dotMorten) - core contributor
• Unni Ravindranathan (@unnir) - For all the great guidance and always pushing for better designer integration!
• Moon logo from The Noun Project which is a great source for Metro style iconography

Some of the code represented in the toolkit is forks/ports of other Open Source libraries. Where used, their license is reprsented in the code files.

• Silverlight Toolkit - for providing the base of many ported concepts/code. Licensed under Ms-PL
• RestSharp - the OAuth helper file is a fork from the RestSharp project which uses this internally for some authenticators. Licensed under Apache 2.0