You can do this using the PIXI ColorMatrixFilter:
var colorMatrix = [ 1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1 ]; var filter = new PIXI.ColorMatrixFilter(); filter.matrix = colorMatrix; stage.filters = [filter];
Darker:
var colorMatrix = [ 1,0,0,-0.5, 0,1,0,-0.5, 0,0,1,-0.5, 0,0,0,1 ];
Lighter:
var colorMatrix = [ 1,0,0,0.5, 0,1,0,0.5, 0,0,1,0.5, 0,0,0,1 ];
See a brief demo here: http://codepen.io/ianmcgregor/pen/LcjBw