For consistency and usability purposes, we want to set up a default set of image styles which are clearly understood by our editors. This probably means getting rid of default style names like "medium", "large" etc.
The question is, is this likely to break other third party/contrib code that relies on the Styles module? Might we need to patch these (possibly too much of a headache) or just configure them to use the new styles?
Note: styles seem to be defined and displayed to editors purely by their (sometimes auto-capitalised) machine names, so we can't set a friendly name that differs from this.
Also: Is it even possible to remove existing styles? I can only seem to find ways/hooks to add them.