<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32"><path fill="#F8312F" d="M2 4a2 2 0 0 1 2-2h24a2 2 0 0 1 2 2v24a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2z"/></svg>
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This is a multicolor icon, so its colors are fixed. You can still adjust size, background, rotation, and animation.
