does it use reactions?

no. fray uses buttons and dropdowns. they say what they do, work on a phone, and answer only the person who clicked.

how many roles can one panel hold?

25, as many as a dropdown shows. past that, use categories, 25 roles each.

yes. single mode swaps the old role for the new one.

not in keep mode. it only ever hands a role out.

yes. a role with no emoji picked shows its own role icon on the panel.

yes. the self-roles page on dash.drain.baby makes, changes and removes panels.

25 roles a panel, or categories: a panel holds 25 roles. past that, file them under categories and each one opens its own picker.
three ways to pick: hold as many as you like, pick only one, or keep: a role that's only ever handed out, for rules and verified panels.
won't hand out a dangerous role: anything with administrator, ban, kick, timeout or mention everyone is refused, and it's checked again on every click.
role icons and server emojis: a role shows its own icon on the panel without setup, or pick any of the server's emojis, still or animated.
or build it on the dashboard: add a panel at dash.drain.baby, pick the channel, roles, emojis, button colours and accent, and it's posted when you save.

every option is on the docs page.

does it use reactions?: no. fray uses buttons and dropdowns. they say what they do, work on a phone, and answer only the person who clicked.
how many roles can one panel hold?: 25, as many as a dropdown shows. past that, use categories, 25 roles each.
can a member hold only one role from a panel?: yes. single mode swaps the old role for the new one.
can clicking twice take a rules role away?: not in keep mode. it only ever hands a role out.
can a panel show role icons?: yes. a role with no emoji picked shows its own role icon on the panel.
can i set it up without commands?: yes. the self-roles page on dash.drain.baby makes, changes and removes panels.

fray covers moderation, tickets, giveaways, reposts, roblox and ai, so a server doesn't need a separate bot for each of them.