MaterialDesignLite
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Shows how to use Wijmo with Google's Material Design Lite.

Material Design Lite (MDL) is Google's implementation of their Material Design 
specification for web developers. It is framework-agnostic and provides beautiful
layouts for modern applications. MDL is a good alternative to Bootstrap CSS,
which we use extensively in our Wijmo samples.

For more information about MDL, please see these links:

https://medium.com/google-developers/introducing-material-design-lite-3ce67098c031#.hdd60hunf

https://www.getmdl.io/

This sample implements a ColorWheel control similar to the one available in 
MDL's customization page. Users may click the wheel to select a primary and
an accent colors; these define a theme that is automatically downloaded
and applied to the page.

The application shows CDN links to the selected themes and allows users to
download the minified CSS. Wijmo includes 286 Material themes that represent
all valid combinations of primary and accent colors.

The sample also includes a wijmo.material.js file that provides a "bootstrap"
function. This function is called automatically when the document loads and
performs two tasks:

1) It monitors MDL tab elements and invalidates Wijmo controls when the 
   user switches tabs. This allows Wijmo controls to update their layout
   when they become visible.

2) It adds event handlers for Wijmo input elements contained in MDL TextField
   elements to update their state attributes (focus, dirty, invalid). This
   allows you to use Wijmo input elements in MDL TextFields in exactly the
   same way you would use native input elements.

