some

mfenced-colors

Combinations of mathcolor and mathbackground.

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

Author: Bruce Miller