• A design language created by Microsoft. MDL is focused on typography and simplified icons, absence of clutter, increased content to chrome ratio (“content before chrome”), and basic geometric shapes. Early examples of MDL principles can be found in Encarta 95 and MSN 2.0. The design language evolved in Windows Media Center and Zune and was formally introduced as Metro during the unveiling of Windows Phone 7. It has since been incorporated into several of the company’s other products, including the Xbox 360 system software, Xbox One, Windows 8, Windows Phone, and Outlook. ← Wikipedia

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