the door had small rust spots on it and always looks dirty.
Clean it and paint it with appliance paint.
you can also paint it with chalk board paint
13 Fridge Makeovers that will Blow Your Mind | DIY & Crafts / for the ...
You can paint it after treating rust.
Try EZ Faux Decor. They make a stainless steel contact paper specifically for appliance faces
My white fridge had rust spots under the side with the water/ice dispenser. I tried a little bottle of appliance paint which worked for a while, but then it flaked off. The fridge is too old (18 years) to put a lot of money into fixing it, so I got white board contact paper and covered the lower door. No more rust spots and I can write on it with Dry-Erase markers.
Ah yes, but they made stuff better back then didn't they? I don't miss the funky colors either. They had their place in history . . . I have black appliances in the house now, but not fond of them, long story. When they need replacing, I am going back to standard white.