This allow you to configure Qt integration using KDE instead of
qgnomeplatform or qtstyleplugins. Useful if your theme supports both GTK
and KDE, for example Nordic.
To use this properly you will need to do some manual configuration for
now. You can set the theme settings using `~/.config/kdeglobals`.
Example:
```nix
{ ... }:
{
qt = {
enable = true;
platformTheme = "kde";
};
xdg = {
configFile.kdeglobals.text = lib.generators.toINI { } {
General = {
ColorScheme = "nordicbluish";
Name = "nordic-bluish";
shadeSortColumn = true;
};
Icons = {
Theme = "Nordic-bluish";
};
KDE = {
LookAndFeelPackage = "Nordic-bluish";
contrast = 4;
};
};
dataFile = {
# For General.ColorScheme
color-schemes = {
source = "${pkgs.nordic}/share/color-schemes";
recursive = true;
};
# For KDE.LookAndFeelPackage
plasma = {
source = "${pkgs.nordic}/share/plasma";
recursive = true;
};
};
};
}
```
This allows you to set a theme for Qt applications. For example, if you
want to use `adwaita-qt` theme to have uniform look between Gtk and Qt
applications, you can use it like this:
```nix
{
qt = {
enable = true;
platformTheme = "gnome";
style = {
name = "adwaita";
package = pkgs.adwaita-qt;
};
};
}
```
This change makes use of the `extend` function inside `lib` to inject
a new `hm` field containing the Home Manager library functions. This
simplifies use of the Home Manager library in the modules and reduces
the risk of accidental infinite recursion.
PR #994