This is not a valid contents for a message bundle file. The right-hand side must consist only of single strings. Also, the use of an array here will be brittle in the face of future changes in the application schema structure. What should happen is that this entry is registered as a set of hierarchical keys - {"textFont.verdana": "Verdana"  etc. so that the referential structure remains stable and extensible. Then the component will have a separate level of decoding in order to assemble this array in response to the particular elements in the primary schema.