Hi Eli, Unfortunately that only changes the width of the fringe. I had tried it before but tried again just to make sure. The bitmap doesn't scale with the fringe width. See the attached screen shot. This is with a fringe of 32 and a font of "10" which translates to 33 pixels on my display. I'm not a Windows programmer (more Linux than anything) so I'm not sure if I can provide a patch. I will poke around the source and see what I can see. Maybe something obvious will pop out. Thanks, Keith On 2018-04-18 2:54, Eli Zaretskii wrote: >> From: Keith Russell >> Date: Tue, 17 Apr 2018 21:07:34 -0400 >> >> >> Running on Windows 10 with a high resolution display (3840 x 2160) >> the fringe bitmaps and toolbar buttons are so tiny as to be almost >> indistinguishable from dots. Scrollbars and menus are fine and the >> fonts look stunning. If I set the compatibility option to "override >> application" and let the system scale then it's the right size but >> fuzzy. I couldn't find anything in the bug reports. The only >> thing I found in the Changelog was the change to make Emacs >> DPI aware on Windows but that was back in 2015. > The fringe bitmaps have fixed width specified in pixels. I understand > you are saying that the number of pixels is correct, but its visual > appearance leaves a lot to be desired, is that right? If so, you can > customize your fringes using this: > > (setq fringe-mode '(16 . 16)) > > (replace 16 with a number that is to your liking, I'm just guessing > there). > > We could also apply the scaling automatically, patches welcome.