msub_colors

Combinations of mathcolor and mathbackground.

W3C sample	WIRIS
	$$X_a,X_a,X_a,X_a,X_a$$

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

Author: Bruce Miller