[ui] icone plus explicite pour l'echec de reduction d'image

<svg viewBox="-256 -256 1024 1024" xmlns="http://www.w3.org/2000/svg" width="64" height="64">

  <path d="M361.602 0H150.398L0 150.398v211.204L150.398 512h211.204L512 361.602V150.398zm0 0" fill="#ff6c6c"/>

  <path d="M352.84 22H159.16L22 159.16v193.68L159.16 490h193.68L490 352.84V159.16zM454 338.083L338.083 454H173.917L58 338.083V173.917L173.917 58h164.166L454 173.917zm0 0" fill="#deecf1" opacity=".7"/>

  <path fill="#fff" d="M383.936 334.271c0-5.654-2.021-10.5-6.058-14.537l-62.988-62.988 62.99-62.99c4.036-4.037 6.055-8.883 6.056-14.535-.001-5.651-2.017-10.495-6.06-14.537l-29.068-29.069c-4.037-4.037-8.882-6.057-14.535-6.057-5.653 0-10.499 2.02-14.535 6.057l-62.99 62.99-62.988-62.988c-4.036-4.037-8.882-6.057-14.535-6.057s-10.495 2.018-14.534 6.057l-29.073 29.072c-4.04 4.04-6.058 8.882-6.055 14.533-.002 5.654 2.02 10.499 6.056 14.535l62.988 62.988-62.991 62.99c-4.037 4.037-6.06 8.885-6.058 14.538.002 5.65 2.023 10.494 6.06 14.531l29.07 29.07c4.04 4.04 8.882 6.06 14.534 6.062 5.654 0 10.5-2.021 14.536-6.058l62.991-62.99 62.988 62.987c4.04 4.04 8.883 6.06 14.537 6.058 5.65.002 10.493-2.015 14.533-6.055l29.073-29.072c4.037-4.04 6.06-8.882 6.056-14.535z"/>

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" width="64" height="64">

  <path fill="#fff" d="M7 8h51v45H7V8z"/>

  <circle fill="#666" cx="20" cy="21" r="5"/>

  <path fill="#666" d="M26.5 38.5l12-12h4.3L37.5 21c-1-1.1-2.8-1.1-3.9 0L8 46V8h44v18.5h3.5L58 29V4c0-1.6-.5-2-2-2H4c-1.6 0-2 .5-2 2v47c0 1.6.5 2 2 2h22.5V38.5z"/>

  <path fill="#df454f" d="M53.2 32H40.8L32 40.8v12.4l8.8 8.8h12.4l8.8-8.8V40.8L53.2 32z" />

  <path fill="#fff" d="M54.5 51.6c0-.3-.1-.6-.4-.9L50.5 47l3.7-3.7c.2-.2.4-.5.4-.9 0-.3-.1-.6-.4-.9l-1.7-1.7c-.2-.2-.5-.4-.9-.4s-.6.1-.9.4L47 43.6l-3.7-3.7c-.2-.2-.5-.4-.9-.4s-.6.1-.9.4l-1.7 1.7c-.2.2-.4.5-.4.9 0 .3.1.6.4.9l3.7 3.7-3.7 3.7c-.2.2-.4.5-.4.9 0 .3.1.6.4.9l1.7 1.7c.2.2.5.4.9.4.3 0 .6-.1.9-.4l3.7-3.7 3.7 3.7c.2.2.5.4.9.4.3 0 .6-.1.9-.4l1.7-1.7c.2-.4.3-.7.3-1z"/>

</svg>