v2.4.11

Fixed — Settings dialog: large empty band below the bottom button row (worse at 125%/150%)

The Settings window pinned its height to a hard-coded design constant instead of measuring its
content, leaving a wide strip of dead space below the OK / Apply / Cancel row — roughly 50px at
100%, and proportionally worse at higher DPI (the constant scaled up while the content didn't grow to
fill it). OnLoad now sizes the client area to the realized content (ClientSize = _root.PreferredSize);
the layout's symmetric Padding(12) becomes an even, DPI-proportional margin on all four sides —
12px at 100%, 18px at 150% — with no magic height number.

Verified by live on-screen measurement (a CopyFromScreen capture + a center-column pixel probe — not
DrawToBitmap, which mis-renders this custom-painted UserPaint form and hid the gutter) at a real
100% and a real 150% scale: the client height equals the measured content (346 / 520) and the button
row sits inside it (334 / 502) with a symmetric gutter at both scales — no clipping.

The 2.4.10 change mistook this for too little padding and bumped the constant the wrong way; the
pinned-constant approach was itself the bug, and is now removed.

Full Changelog: v2.4.10...v2.4.11