These thematic pictures of رنگ اور شکلیں۔ are analogous to a visual dictionary. The theme "رنگ اور شکلیں۔" splits into several parts. For children, especially toddlers from 1 to 5 years old, it is better to divide the sets of cards over several days, or even weeks, so the information is absorbed better. Especially it is true if you are using flashcards to learn the urdu language, which is not your native language.
To expand your urdu language vocabulary on the "رنگ اور شکلیں۔" topic, flashcards games are the best way: