Compress to:
{#each presets as mb, i} {/each} {#if customActive}
{ if (customValue > 0) app.setCustomSize(customValue); }} onkeydown={(e) => { if (e.key === 'Enter') (e.target as HTMLInputElement).blur(); }} min="0.1" step="0.1" /> MB
{:else} {/if}