Font rendering on macOS (too bold, blurry)

[loliee]

I have some trouble to setup a correct font rendering like the one I have on Iterm2.

Here some screenshots

Alacritty left / Iterm2 right:

Iterm2 top / Alacritty bottom:

It's always too bold and blurry…

I tried to change my macOS setup with:

defaults -currentHost write -g AppleFontSmoothing -int 4

Without success…

Is there something I missed about macOS font config?
Is there a chance that #957 will fix that?

System

OS: macOS (Sonoma, Retina display 15,4-inch (2880 × 1800))
Version: alacritty --version output

Logs

Crashes: STDERR, STDOUT
Font/Terminal size: alacritty -vv

~/Applications/Alacritty.app/Contents/MacOS/alacritty -vv
Created log file at "/var/folders/lx/_6tk9zvd7zs5wbl_hq5k_1t40000gn/T/Alacritty-1508.log"
[0.000010178s] [INFO ] [alacritty] Welcome to Alacritty
[0.000272076s] [INFO ] [alacritty] Version 0.12.3 (5efb069)
[0.000927154s] [INFO ] [alacritty] Configuration files loaded from:
                                     "/Users/mloliee/.alacritty.yml"
[0.001326468s] [DEBUG] [alacritty] Using environment locale: en_US.UTF-8
2023-10-30 09:31:18.917 alacritty[1508:18810] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
[0.023595830s] [INFO ] [alacritty] Using Apple CGL
[0.066453922s] [INFO ] [alacritty] Window scale factor: 2
[0.068517661s] [DEBUG] [alacritty] Loading "Iosevka Nerd Font" font
[0.147148344s] [INFO ] [alacritty] Running on AMD Radeon Pro 560X OpenGL Engine
[0.147198112s] [INFO ] [alacritty] Using OpenGL 3.3 renderer
[0.153091707s] [DEBUG] [alacritty] Filling glyph cache with common glyphs
[0.171771400s] [INFO ] [alacritty] Cell size: 14 x 35
[0.171835720s] [INFO ] [alacritty] Padding: 14 x 22
[0.171853474s] [INFO ] [alacritty] Width: 3360, Height: 1934
[0.173836965s] [INFO ] [alacritty] PTY dimensions: 54 x 238
[0.176877782s] [INFO ] [alacritty] Initialisation complete
[0.197418410s] [DEBUG] [alacritty_terminal] Term::resize dimensions unchanged

[kchibisov]

defaults -currentHost write -g AppleFontSmoothing -int 0

[loliee]

Thanks you, may be the only value I didn't test… 😅

Good bye iTerm2 !

[edmondburnett]

On Big Sur, the following worked for me to disable the font smoothing in alacritty only (instead of the global Macos GUI):

defaults write org.alacritty AppleFontSmoothing -int 0