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Nomarchy/modules/home/stylix.nix
Bernardo Magri 7eb9b8ad4f
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feat(theme): opt-in cross-pack icon overrides, no default bloat
theme.nix now resolves nomarchy.theme.iconThemePackage from a small
icon-pack registry (Papirus/Tela/Qogir/Reversal/Numix, matched by name
prefix). Default themes name Papirus-*, so the resolved package is the
plain papirus-icon-theme derivation — byte-identical closure, zero added
MB. Only when a theme's `icons` names a set from another pack is that
pack (and only it) symlinkJoined alongside papirus. stylix.nix consumes
it via mkDefault. Adding a pack is one iconPacks row.

Deliberately NOT shipping more packs by default: papirus alone is already
~1 GiB and each extra pack adds ~hundreds of MB, so variety is opt-in per
install (set `icons` in theme-state.json), not a default closure cost.
Documented in templates/downstream/home.nix + ROADMAP § Icon themes.

Verification: V1 (HM activationPackage builds). Eval proofs — default
resolves to plain papirus (zero delta); icons="Tela-dark" ->
nomarchy-icon-themes symlinkJoin (papirus+tela) with the name flowing,
without building tela; all 5 pack attrs exist in the pinned nixpkgs;
template-sot + option-docs + flake check green. No default visual change
(same papirus), so no screenshot; the opt-in render is downstream.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-10 20:12:52 +01:00

104 lines
3.6 KiB
Nix

# Stylix — themes the long tail of applications (GTK, Qt, cursors,
# fonts) from the same theme-state.json that drives the live engine.
#
# Division of labour: the hot-reload trio (Hyprland, Waybar, Ghostty)
# is owned by the Nomarchy engine and updates instantly; everything
# Stylix touches updates on the next home-manager switch. That is why
# autoEnable is off and the trio's Stylix targets stay disabled.
#
# Note: the stylix home module itself is imported by homeModules.nomarchy
# in flake.nix (it needs the stylix flake input).
{ config, lib, pkgs, ... }:
let
cfg = config.nomarchy;
t = cfg.theme;
c = t.colors;
hex = lib.removePrefix "#";
# Map the Nomarchy palette onto base16 roles.
base16 = {
base00 = hex c.base; # default background
base01 = hex c.mantle; # darker background (status bars)
base02 = hex c.surface; # selection background
base03 = hex c.muted; # comments
base04 = hex c.subtext; # dark foreground
base05 = hex c.text; # default foreground
base06 = hex c.text; # light foreground
base07 = hex c.text; # lightest foreground
base08 = hex c.bad; # red
base09 = hex c.warn; # orange
base0A = hex c.warn; # yellow
base0B = hex c.good; # green
base0C = hex (builtins.elemAt t.ansi 6); # cyan
base0D = hex c.accent; # blue
base0E = hex c.accentAlt;# magenta
base0F = hex c.bad; # brown/deprecated
};
in
{
config = lib.mkIf cfg.stylix.enable {
stylix = {
enable = true;
autoEnable = false; # explicit targets only — the engine owns the rest
polarity = if t.mode == "light" then "light" else "dark";
base16Scheme = base16;
targets = {
gtk.enable = true;
qt.enable = true;
# No-op unless programs.zathura is on (viewers.nix enables it).
zathura.enable = true;
};
cursor = {
name = lib.mkDefault "Bibata-Modern-Classic";
package = lib.mkDefault pkgs.bibata-cursors;
size = lib.mkDefault 24;
};
# GTK/file-manager/rofi icon theme, resolved from the JSON in
# theme.nix (per-theme `icons`, else Papirus-Dark/Light by mode).
# Stylix sets gtk.iconTheme from this; both dark/light point at the
# already-mode-resolved name. The package is papirus by default and
# only unions in another pack when a theme's `icons` names one
# (theme.nix — opt-in, no default closure bloat).
icons = {
enable = true;
package = lib.mkDefault t.iconThemePackage;
dark = t.iconTheme;
light = t.iconTheme;
};
fonts = {
monospace = {
name = t.fonts.mono;
package = lib.mkDefault pkgs.nerd-fonts.jetbrains-mono;
};
sansSerif = {
name = t.fonts.ui;
package = lib.mkDefault pkgs.inter;
};
serif = {
name = t.fonts.ui;
package = lib.mkDefault pkgs.inter;
};
emoji = {
name = "Noto Color Emoji";
package = lib.mkDefault pkgs.noto-fonts-color-emoji;
};
sizes.terminal = t.fonts.size;
};
};
# GTK4/libadwaita and Qt6 apps decide dark vs light from the XDG
# portal's color-scheme (org.freedesktop.appearance), which
# xdg-desktop-portal-gtk sources from this gsettings key. Stylix sets
# the GTK theme and `polarity` but not this, so a light theme still
# rendered libadwaita/Qt apps dark (and vice-versa). Drive it from the
# palette mode. (programs.dconf.enable is already on system-side.)
dconf.settings."org/gnome/desktop/interface".color-scheme =
if t.mode == "light" then "prefer-light" else "prefer-dark";
};
}