How do you remove the BG color there?

[ad_1]

been messing around with block themes and using 2023 theme

but when I changed the colors, there’s this grey border around the whole website that I can’t seem to change into white.

Anyone has an idea?

https://preview.redd.it/42hfzegp8vbd1.png?width=1232&format=png&auto=webp&s=a130ac44ac1b58f66618ef68a2293e82b81e3cef

[ad_2]