The mail content in Geary is displayed blurry on my HiDPI display, as are websites in Midori.
After some research I think using the latest WebKit version could fix that.
I found this info about how to compile Midori with the latest WebKit version, but
libwebkit2gtk-4.0-dev does not seem to be in the repos and I am not certain about how to adapt the steps described therein for use with Geary.
Any help or info would be much appreciated.