In some places, including one place, different town customs will be different.
Seen the most is:
1, only wearing red shoes.
2. You can only wear green shoes.
The probability is about 50% to 50%
Moreover, most people will choose red shoes that match their red dresses better when they send guests away just for going out and ceremonies.
You'd better listen to the opinions of your family in this matter. The wedding dress is long and the shoes are in the way, so it won't be too ugly.
(But the picture of wearing a wedding dress with red shoes or green shoes is really beautiful ~)