id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
16471	Update hidpi settings when it changes	Marek Lewandowski		"`devicePixelRatio` is not a constant property, you can move browser between displays with a different pixel ratio.

This test case will require 2 screens witha different pixelratio.

1. Open editor in a web browser with a 1.0 devicePixelRatio.
1. Move web browser to the other, hidpi display.

**Expected:** Icons are updated to hdpi icons.

**Actual:** Icons remain blurry.

Actually if that's as simple as toggling `cke_hidpi` class it would be fairly simple to do that. However it will be a little harder with dev version, as it uses direct icon paths in a `span.cke_button_icon`.

I did not research it in deep, however there's a question on [SO that might contain interesting information](http://stackoverflow.com/questions/28905420/window-devicepixelratio-change-listener)."	Bug	new	Normal		General