jason1973tess change it to what ever colour you want and change the font to eny size you want? ??
You can if you use firefox browser and the Stylus extension. Though you need to know a bit about css to do it. And your changes will generally apply to all objects of a specific class -- you can't easily single out individual tags.
So, you could change all "TagTile-children" to cyan and increase the size:
.TagTile-children > a
but you'd have to make some other adjustments to see much more than at present and it would apply to the other subtags too: