Hi, I've been a happy user of mlterm for a while now but there's something bugging me with the font rendering:

Cairo:

Xft:

I'm not sure it comes across very well in the images (github does some sort of processing on them, the colors are a bit off) but horizontal bars are fuzzy in an inconsistent way. This is especially noticeable on the ===, es and Ts but also the [s.
(Ideally compare this by switching between the font renderers on your system in real time.)

Are you able to reproduce the bahaviour? I want to make sure it's not a packaging bug on my end.

Is that a Cairo bug perhaps? My Emacs and lxterminal are built against Cairo too though AFAICT (the latter through vte+pango) and do not exhibit this behaviour.

Unfortunately, simply using xft is not an option as it fails to display CJK characters.

Dotfiles: https://github.com/Atemu/dotfiles/tree/62cc068345cebd5346f4ead6f0a58efab2293a2f/.config/mlterm/
Nixpkgs: https://github.com/Atemu/nixpkgs/blob/22aaac9cbc6a472c0e68b86466b241d25aa051dc/pkgs/applications/terminal-emulators/mlterm/default.nix
Nixos-config: https://github.com/Atemu/nixos-config/blob/9e13cb6801af2714f820a8fed1d81401adeb5653/configs/HEPHAISTOS/default.nix