Owner live-client report 2026-09-07: "Those BIG gold/yellow buttons HAS
to go. That is not how vtank looks." VTank/Decal's HudCombo is a flat
dark box (background/border matching its own HudList) with a
left-aligned value and a small down-arrow — retail's gold pushbutton
art (the 3-slice LED-arrow face UiMenu.DrawButtonFace draws) is a
different widget family entirely.
Adds UiMenu.RetailButtonArt (default true, so every existing
non-markup UiMenu caller — chat's channel menu, vendor's category
dropdown, Config's option menus, the retail confirmation dialog, and
DatWidgetFactory's generic Type-6 element — keeps its byte-identical
retail face) plus DrawPlainClosedState/DrawPlainTriangle, which draw
the flat box entirely with UiRenderContext.DrawFill/DrawRectOutline (no
sprite or DAT quad at all) using colors mirroring UiMarkupList's own
chrome (background 0,0,0,0.92; border 0.46,0.37,0.16,1; text
0.91,0.87,0.76,1). Open/pressed only tints the border
(0.70,0.58,0.24,1) — never a sprite swap.
Mutation check: temporarily disabled the new `if (!RetailButtonArt)`
branch in OnDraw (reverting it to the pre-fix unconditional retail
path) — 3 of the 6 new UiMenuPlainStyleTests failed exactly as
expected (Plain_ClosedState_DrawsNoTexturedFaceQuad,
Plain_ClosedState_DrawsFillOutlineTextAndTriangle,
Plain_ClosedState_TriangleSitsRightAligned_TextSitsAtListPadding); the
3 retail-path/default-value tests kept passing since they don't
exercise the removed branch. Restored before committing.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>