It is no longer possible to change the wallpaper e19 with "enlightenment_remote".
The correction is a simple update of the code.
Also, in data/tools/enlightenment_remote .. the help text for desktop-bg-add & desktop-bg-del still show container, zone, desk_x, desk_y as options to be passed in, so likely the help text should be updated also
ummm i can change bg. without this patch. this patch removes the ability to set a specific bg for a specific screen/desktop... so its all or nothing. this at least changes what this option does so any scripts depending on it break... :( and it doesn't fix anything i see. if you wanted a new option to set on all screens/desktops... then it should add a new option.