Question: how to change the color of block in beamer?
Answer: \documentclass{beamer} \usetheme{Warsaw} \begin{document} \begin{frame} \setbeamercolor{block title}{use=structure,fg=white,bg=purple! 75! black} \setbeamercolor{block body}{use=structure,fg=black,bg=white! 20! white} \begin{block}{title 1} ...