refactor(waybar): extract mkIcon helper, drop per-module iconColor parameter

- Add lib.nix with shared mkIcon function for consistent icon formatting
- Pass mkIcon instead of per-module iconColor to all modules
- Define iconColor locally within each module
- Fix battery icon character

1 files changed, 7 insertions, 0 deletions

diff --git a/modules/desktop/waybar/lib.nix b/modules/desktop/waybar/lib.nix
new file mode 100644
index 0000000..9053cd5
--- /dev/null
+++ b/modules/desktop/waybar/lib.nix
@@ -0,0 +1,7 @@
+{ lib, ... }:
+let
+  mkIcon = color: icon: "<span foreground='${color}' font_size='125%'>${icon}</span>";
+in
+{
+  inherit mkIcon;
+}