I've removed all the different STYLE_ variables from mxConstants to reduce the complexity of various files.

Next step I hope to create style templates which directly assign defaults to each variable so that they're stored in fewer places e.g.:

class StyleBase {
  highlightColor: string = "#00FF00";
  wordWrap: string = "normal";
  ...
}

I'd also like to remove mxUtils.getValue and similar methods, and make it so types are clarified. In particular, boolean values can be "1"/"0", 1/0, true/false in various places and would like to make them all simply use true and false unless there's a good reason not to because of the way things serialized. If these changes were made, it should be possible to change the following from:

if (mxUtils.getValue(shape.style, 'flipH', 0) == 1) {}

to be just:

if (shape.style.flipH) {}  // ->