back to more robust "standard" anti-aliasing (reverting f610115ca3d0): sub-pixel rendering can have odd color effects, even on high-end displays;
--- a/src/Tools/jEdit/src/jEdit.props Sun Apr 07 21:05:22 2019 +0200
+++ b/src/Tools/jEdit/src/jEdit.props Tue Apr 09 10:28:17 2019 +0200
@@ -305,7 +305,7 @@
vfs.favorite.4=isabelle-export:
vfs.favorite.5.type=1
vfs.favorite.5=isabelle-session:
-view.antiAlias=subpixel HRGB
+view.antiAlias=standard
view.blockCaret=true
view.caretBlink=false
view.docking.framework=PIDE