How to use sed to remove spaces in a phrase around (behind) a comma, replace the comma with a slash?

Question

bash

there is text : some text ,
oylala ( white , silver ) _ _ _ _ / silver) Sneakers, oh lala (plum / green) some text oiwei (black / white) some text, highway (grey / pink / white)

Answer 1

sed -ie s/(\s?,\s?)/_/g

Answer 2

\,
or in hex16
here I wrote a detailed one https://klondike-studio.ru/blog/sed-spetssimvoly/