Forum:Perrow gallery parameter on FandomDesktop?

Is anyone else having an issue with the perrow gallery parameter actually allowing one less than that amount? Trying to attempt some transition prep for gallery code on a wiki and ran into this and I want to know if it's just me, if it's user error, or if it's a bug I should report... - Citrusellaeditswikis (talk) 19:18, 22 June 2021 (UTC)