getSvgIcon = (iconIndex = 0, strokeWidth = 1.5) => {
    return `<svg viewBox="0 0 24 24" stroke-width="${strokeWidth}"><path d="${iconStrokes[iconIndex]}"/></svg>`;
}
[0: x, 1: tick, 2: arrow]
@param {0 | 1 | 2} [iconIndex]
@param {number} [strokeWidth]