Provide examples on how to escape comments

[v-Nyo]

As far as I can see there are no examples anywhere on how to escape comments.

I spent way too much time on the following examples (tried all kind of thing):

Does not work: env = BEMENU_OPTS-TEST,--fb \##1e1e2e --ff \##cdd6f4

Does work???: bind = Super, G, exec, bemenu-run --fb \##1e1e2e --ff \##cdd6f4 ..

Could you clarify how I can escape # properly ?