我有以下SVG代码，它绘制了很多正方形：
df.eq(df.a, axis=0).sum(1) - 1
#0 1
#1 1
#2 1
#dtype: int64
有没有办法选择前3个 <svg width="100%" height="100%" viewBox="0,0,100%,100%" xmlns="http://www.w3.org/2000/svg">
<defs>
<pattern id="smallGrid" width="1.388888888888889%" height="5%" patternUnits="userSpaceOnUse">
<path fill="#2e99e5" d="M0 0h960v960H0z" stroke="gray" stroke-width="0.5"/>
</pattern>
<pattern id="grid" width="8.333333333333333%" height="50%" patternUnits="userSpaceOnUse">
<rect width="100%" height="100%" fill="url(#smallGrid)"/>
<path fill="none" d="M0 0h960v960H0z" stroke="gray" stroke-width="2" />
</pattern>
</defs>
<rect width="100%" height="100%" fill="url(#grid)" />
</svg>并更改颜色？