1. For 2D Symbols ONLY, Furniture library are useless.
2. I've explain here my way to create this.
3. Depend the OS You use; if is a linux system in lasted library version is a bash script who generate this kind of library.
4. If is too hard You can let me know what kind of symbols You need and I'll try to help You.
5. Don't forget: the library I've made are visible ONLY in 2D plan.