Hello JMMK
No, not as far as I am aware I think it’s all or nothing!
One way around it though might be to:
1: Use ‘Flatten To Paint’ for the Sticker layer in question.
2: Use the Selection Tool to isolate the colour you want to change.
3: With the selection still active go to: Edit > Filters > ‘Adjust Layer Colours…’ And alter your chosen colour.
Though the more complex the original sticker’s colouring was the harder this workaround may be to implement.