XFCE4 Wallpaper display in Black and White

How to fix XFCE4 Black & White Wallpaper

After I switched some wallpapers manager apps I got the problem: XFCE4 Wallpaper only display in black and white. I have managed to fix the issue partially, by removing and reinstalling gdk-pixbuf and gdk-pixbuf2 – which I recall threw some errors during the system update. However, all custom (jpeg or png) wallpaper images are displayed in black and white once they are set as wallpaper.

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