Option to Set Wallpaper Separately for Home Screen and Lock Screen

When I try to change the wallpaper (including using "Set as" from the Gallery), the image correctly opens in Niagara Launcher's wallpaper picker. However, there is no option to choose whether to apply the wallpaper to the Home screen, Lock screen, or Both.

Currently, the wallpaper is automatically applied to both the Home screen and the Lock screen, with no way to select only one.

Steps to Reproduce:

Open an image in the Gallery.

Tap Set as → Wallpaper.

The image opens in Niagara Launcher's wallpaper screen.

Apply the wallpaper.

Expected Behaviour:

Before applying the wallpaper, there should be options to set it as:

Home screen only

Lock screen only

Both Home and Lock screens

Actual Behaviour:

The wallpaper is applied to both the Home screen and the Lock screen automatically, without giving the user a choice.