Configure default location of wallpapers

If I want to change the wallpaper and open the settings application, I can select “Background” and then select “background images, Images and colours”. When opting for Images, it default looks for images in my $home directory. Where can I change this, for example into ~/wallpapers ??

I found a fix for this, you need the ~/.config/user-dirs.dirs file.

Edit the following line:
XDG_PICTURES_DIR="$HOME/"