Accent rendering with <mover accent="true">

Rendering common accents is, in my opinion, overly awkward.

e.g. Rendering a circumflex (hat) properly requires

<math>
  <mover accent="true">
    <mi>H</mi>
    <mo stretchy="false">&#x0302;</mo>
  </mover>
</math>

I understand that this is aimed at flexibility, but common accents like this should really be able to have special treatment for proper rendering. The MathMl named element "Hat" is the Unicode ^, which does not render well as a hat.

My opinion here is that these common accents should be treated as a special case, in the same notation:

<math>
  <mover accent="true">
    <mi>H</mi>
    <mo>&Hat;</mo>
  </mover>
</math>

rendering the operator properly.

See https://en.wikipedia.org/wiki/Hat_notation, for examples of how this notation should look.

I would appreciate any discussion on the issue.

Start with the issue's MathML examples and the linked hat-notation reference, then review the MathML Core rules for mover accents and operator rendering. The issue names no files or tests; done would require an agreed treatment for common accents and corresponding rendering behavior.