Bella's polos and ear bonnet with white saddle pad?

So hey! (Please read!)

I have a showjumping comp tommorow, I'm using a white saddlepad but I'm unsure if I should use white or grey polos? Or if I should put my grey ear bonnet on her?

I'm using a black saddle and bride with a simple cavesson noseband, a running martingale and as I said, a white saddle pad.

Example of ear bonnets and polos ^^