I need help removing color

[Lillian35013702sgoy]

I know how to remove each individule colored shape, but is there a faster way to just get rid of every color in an SVG? I have a colored image, and I simply need every color but black gone. I can not seem to figure out how, and nothing in any of my google searches have helped

[Kurt Gold]

You may try Edit menu > Edit Colours > Adjust Colour Balance ...