YOU SAID:

Neon lights was my birthday party theme

INTO JAPANESE

ネオンライトは私の誕生日パーティーのテーマでした

BACK INTO ENGLISH

neon lights were the theme of my birthday party

INTO JAPANESE

ネオンライトが私の誕生日パーティーのテーマでした

BACK INTO ENGLISH

neon lights were the theme of my birthday party