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nixos/fontconfig: Change default antialiasing style to greyscale instead of subpixel

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fontconfig before version 2.13.1 was apparently implicitly not using
subpixel antialiasing. The fontconfig NixOS module deviated from this,
using subpixel antialiasing with `rgb` layout by default. In fontconfig
2.14.1, subpixel antialiasing was inadvertently enabled as the default:
2b6afa02ab

According to https://gitlab.freedesktop.org/fontconfig/fontconfig/-/issues/337,
that deviates from GNOME/GTK’s defaults, which resulted in apps taking the
settings directly from fontconfig (e.g. Firefox) from diverging from GNOME
programs.

The change was subsequently reverted in 2.14.2, choosing the greyscale
antialiasing explicitly: 030759b74f
Let’s reflect this default setting in the NixOS module.

Co-authored-by: Jan Tojnar <jtojnar@gmail.com>
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
This commit is contained in:
Sefa Eyeoglu 2023-03-24 11:43:39 +01:00 committed by Jan Tojnar
parent b5d2d701d1
commit bd97ff5ff4
2 changed files with 3 additions and 1 deletions
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2
nixos/doc/manual/release-notes/rl-2311.section.md
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@ -30,6 +30,8 @@
- The Cinnamon module now enables XDG desktop integration by default. If you are experiencing collisions related to xdg-desktop-portal-gtk you can safely remove `xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];` from your NixOS configuration.
- `fontconfig` now defaults to using greyscale antialiasing instead of subpixel antialiasing because of a [recommendation from one of the downstreams](https://gitlab.freedesktop.org/fontconfig/fontconfig/-/issues/337). You can change this value by configuring [](#opt-fonts.fontconfig.subpixel.rgba) accordingly.
- A new option was added to the virtualisation module that enables specifying explicitly named network interfaces in QEMU VMs. The existing `virtualisation.vlans` is still supported for cases where the name of the network interface is irrelevant.
- `services.nginx` gained a `defaultListen` option at server-level with support for PROXY protocol listeners, also `proxyProtocol` is now exposed in `services.nginx.virtualHosts.<name>.listen` option. It is now possible to run PROXY listeners and non-PROXY listeners at a server-level, see [#213510](https://github.com/NixOS/nixpkgs/pull/213510/) for more details.

2
nixos/modules/config/fonts/fontconfig.nix
View File

@ -417,7 +417,7 @@ in
subpixel = {
rgba = mkOption {
default = "rgb";
default = "none";
type = types.enum ["rgb" "bgr" "vrgb" "vbgr" "none"];
description = lib.mdDoc ''
Subpixel order. The overwhelming majority of displays are