We’ve got decorators in who applied a mist coat to a new plaster job. They popped faceplates off the wall (which I planned on replacing anyway). However the socket behind and wires now look like this.
Apart from the obvious ‘which wire is which colour’ problem, how bad is this and what should we be doing to remedy?
Example:

Apart from the obvious ‘which wire is which colour’ problem, how bad is this and what should we be doing to remedy?
Example:
