StageXL for Dart

Stage2D

stage.scaleMode = StageScaleMode.SHOW_ALL;
stage.scaleMode = StageScaleMode.NO_BORDER;	
stage.scaleMode = StageScaleMode.EXACT_FIT;
stage.scaleMode = StageScaleMode.NO_SCALE;

                    

Starling

starling = new Starling(Game, stage, new Rectangle(0, 0, screenWidth, screenHeight));

var isPad:Boolean = (screenWidth == 768 || screenWidth == 1536);
starling.stage.stageWidth  = isPad ? 384 : 320;
starling.stage.stageHeight = isPad ? 512 : 480;
                    

HTML5

meta name="viewport" content="width=device-width, initial-scale=1"
                    

StageXL

var stage = new Stage(canvas, width: 800, height: 600);

stage.scaleMode = StageScaleMode.EXACT_FIT;
stage.align = StageAlign.NONE;