Choices: review r1 fixes

internal/choice.go

@@ -36,12 +36,11 @@ func CheckBox(p *ui.Painter, r ui.Rect, s CheckState, k theme.Tokens, hover bool
 	if s == Mixed {
 		mark = "minus"
 	}
-	Mark(p, r, mark, k.OnAccent)
+	in := r.W * 0.12
+	Mark(p, ui.Rect{X: r.X + in, Y: r.Y + in, W: r.W - 2*in, H: r.H - 2*in}, mark, k.OnAccent)
 }
 
-// Mark paints the Lucide icon name inset in r. Icons sit on the pixel grid,
-// so their cached masks never differ between frames or tests.
+// Mark paints the Lucide icon name in r, on the pixel grid so masks never vary.
 func Mark(p *ui.Painter, r ui.Rect, name string, c ui.Color) {
-	in := r.W * 0.12
-	p.Icon(icons.Must(name), ui.Rect{X: r.X + in, Y: r.Y + in, W: r.W - 2*in, H: r.H - 2*in}, c)
+	p.Icon(icons.Must(name), r, c)
 }