R / RStudio：高dpi屏幕上的图形缩放问题和模糊性

On high DPI 4K monitors it seems that under Windows the RStudio plot window uses pixel doubling to make the plot legible (I'm using RStudio 0.99.483 and R 3.2.2 and Windows 8.1, but same result under Windows 10). This results in really fuzzy text & graphics (plus doesn't play well with Cleartype, as it results in colour fringing after pixel doubling). On high DPI 4K monitors it seems that under Win