qt5: Bad painting of lines when Canvas.AntiAliasing is used
- Lazarus/FPC Version: Lazarus 2.3.0 r65368M FPC 3.2.3 x86_64-linux-gtk2
- Operating System: Ubuntu 20 x64
- CPU / Bitness: 64
Continuation of https://forum.lazarus.freepascal.org/index.php?topic=54087.0
I made the tiny repro, because bug - ugly painting of lines - is caused by Canvas.AntiAliasing:= amOn. Demo added. In demo, change the checkbox and see on rectangles look. When checkbox is on, lines are bad.
EDITED the demo zip tst-qt5-bug-lines.zip