[Bug] Stretched display

[fastjengine]

[Bug] Stretched display

[lucasstarsz]

This is not a bug.
FastJ uses two resolution modifiers: viewer (window) resolution and internal (game) resolution.

The viewer resolution represents the size of the game window -- changing this does not affect the game content screen size. The game content will be stetched or shrunk to fit the size of the game window.

On the other hand, internal resolution is the resolution of the game itself. The internal resolution's default size is 1280*720 -- switching the window's resolution to 800*600 will make the game shrink down to fit it.
For more information, please look at FastJEngine#configureInternalResolution and FastJEngine#configureViewerResolution.