What is the difference between central idea main idea, and theme? please makes the answer not too wordy

A central idea is a main point that the author is making.

The main idea is the point of the paragraph or topic.

The theme in a story is its underlying message, or 'big idea’. This would be like a story of a group of guys hating on the new kid because he wears old clothing and they assume he’s poor but turns out the kid is rich and just likes to dress up like that. The theme here would be “don’t judge a book by its cover”

autobiography of an ex-colored man is told from the first-person point of view of an unnamed male narrator. he starts his tale by stating that he is going to reveal the great secret of his life. he first takes the reader to his childhood in georgia where he was raised by a single mother. he was dissapointed in his own color.

"freedom of speech, freedom of worship, freedom from want, and freedom from fear.

the four freedoms were goals articulated by united states president franklin d. roosevelt on january 6, 1941"