1 <svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"> 2 <!-- Solid rounded square (stop). Inset further than the play triangle and 3 the x's bars: a square fills its bounds completely, so it needs the 4 smaller extent to carry the same visual weight as the disc and the 5 triangle beside it. --> 6 <rect x="8" y="8" width="24" height="24" rx="6" fill="#ffffff" /> 7 </svg>