some

msqrt-colors

Combinations of mathcolor and mathbackground.

W3C sample WIRIS
a , a , a , a , a , a , a 
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mrow>
    <msqrt>
      <mi>a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt>
      <mi mathcolor="#FF0000">a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt mathcolor="#FF0000">
      <mi>a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt mathbackground="#80FF80">
      <mi>a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt mathbackground="#80FF80">
      <mi mathcolor="#FF0000">a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt mathcolor="#FF0000" mathbackground="#80FF80">
      <mi>a</mi>
    </msqrt>
    <mo>,</mo>
    <msqrt>
      <mi mathbackground="#80FF80">a</mi>
    </msqrt>
  </mrow>
</math>

Author: Bruce Miller