I recently embarked on a months-long just-for-fun effort of porting an old AS3/Flash game to Haxe and make sure it worked on every imaginable Haxe target I coul

I recently embarked on a months-long just-for-fun effort of porting an old AS3/Flash game to Haxe and make sure it worked on every imaginable Haxe target I could find. If there was something that bit me was how ugly everything looked inside the browser, even when using a WebGL backend. It turns out it was very obviously exactly what you described. You basically have to double the resolution to get it to look decent on retina and 4k screens. Once I found this out I was over the moon! (On a related note, colouring looks way off on the HTML5 target compared to native ones, and I spent an embarassing number of hours manually brute-forcing a shader to make everything look similar. Oh, and sound sucks in the browser. Oh, and Safari sucks. Seriously, it just sucks. The amount of hacks I put in place to workaround its egregious limitations, particularly regarding canvas operations is insane.)