<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><path fill="#31373d" d="M11 36s-4 0-4-4V4s0-4 4-4h14s4 0 4 4v28s0 4-4 4z"/><path fill="#55acee" d="M9 5h18v26H9z"/></svg>
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This is a multicolor icon, so its colors are fixed. You can still adjust size, background, rotation, and animation.
