Microsoft use the phrase - Windows reimagined - to highlight their ambitious new operation system.
The Metro style approach provides a totally different view from current application development.
They thing the current UX shows less content but too many chrome controls for navigation, layout, interactions, etc.
They want to provide content before chrome which means content comes first and immerse users in the things they love.
It leaves only the most relevant elements on the screen to minimize distractions
Couple points from their design resources (https://developer.microsoft.com/en-us/windows/design)
Give content breathing room: intentional space frames the content and allows your eyes to focus on the right thing and remove lines and boxes as a way to group and organize content Use Typography: create a sense of structure and hierarchy in your content Let content flow from edge to edge: pan only on a single axis to create a sense of stability and to support the selection model Create visual alignment: align elements on a grid to create a structured and consistent layout Integrate commands into the content Leverage the edge Provide commands contextually I can provide more examples later to visualize all this concepts.