Key Improvements:
-File Handling: The characters_dictionary.json is now opened once, outside the loop, which avoids unnecessary file IO.
-Light Handling: I've consolidated the light creation process to simplify it and avoid redundancy.
-List Comprehensions: Used list comprehensions to streamline code, especially when populating dictionaries or lists.
-Reduced Nested Conditions: Combined redundant checks and made the code more readable without changing the overall logic.

These changes should maintain the same functionality but make the code more efficient and easier to maintain.