Could you please elaborate, with a short example of the code you use, the html and the (unexpected) result?

eg. color not working for <sub> elements the <sub> element only black but <sup>'s are text's color. The <sub> location is too low.
<p>PanPastel<sup>&reg;</sup> Sofft<sub>&#8482;</sub> Tools</p>

Hi, I tested with your example like this:
<p>PanPastel<sup style="color: blue;">&reg;</sup> Sofft<sub style="color: red;">&#8482;</sub> Tools</p>
And the sup color is rendered blue and sub color is rendered red.
The offset vertically is the same for both sub and sup, just in the opposite direction so I don't know what exactly you mean by sub location is too low.

Please let us know (with some example html) if there is still an issue.