I mean that it would come in handy to have an editable file which specifies the color or the apperance in general.
For example an XML source could look like this:
<xml> <bullet type="normal" color="#ffffff"> </xml>
Or if it's something CSS-like:
bullet {color: #ffffff;} bullet.normal {border-color: #0000ff;}
Or maybe just any new syntax, it's just that anyone who knows a very little about HTML will be able to understand that immediately.