[Bug] Icon Theme on NixOS can't be found

[quantumfate]

The following common locations for icon themes don't exist on a standard NixOS installation.

➜  ~ hyprlauncher 
[hw] err: err: 111
Creating an Aquamarine backend!
[HT] TRACE: CSystemIconFactory: skipping file /usr/share/icons/default/index.theme (no access)
[HT] TRACE: CSystemIconFactory: skipping file /usr/local/share/icons/default/index.theme (no access)
[HT] TRACE: CSystemIconFactory: skipping file /home/quantum/.icons/default/index.theme (no access)
[HT] TRACE: CSystemIconFactory: skipping dir /usr/share/icons/ (no access)
[HT] TRACE: CSystemIconFactory: skipping dir /usr/local/share/icons/ (no access)
[HT] TRACE: CSystemIconFactory: skipping theme dir /home/quantum/.icons/hicolor (no index.theme)

In a Home-Manager setup, installed such as home.packages = with pkgs; [...], the icons are located in /etc/profiles/per-user/<user>/share/icons and if installed through environment.systemPackages = with pkgs; [...]; it will be located in /run/current-system/sw/share/icons/.

Output of $XDG_DATA_DIRS:

/nix/store/p4i3qsi3vhljaypk4ms1vpckkwc707mm-desktops/share:/home/quantum/.nix-profile/share:/nix/profile/share:/home/quantum/.local/state/nix/profile/share:/etc/profiles/per-user/quantum/share:/nix/var/nix/profiles/default/share:/run/current-system/sw/share

And this folder does have the icons too, that I want to use.

➜ ~ ls /etc/profiles/per-user/quantum/share/icons
catppuccin-mocha-mauve-cursors hicolor icons Papirus Papirus-Dark Papirus-Light transmission.svg