\setbeamercolor{block body}{bg=white}
\setbeamercolor{block title}{bg=white, fg=coolblack}
\begin{block}{\scriptsize{There is a Linux kernel framework that can be used for
\setbeamercolor{block body}{bg=white}
\setbeamercolor{block title}{bg=white, fg=coolblack}
\begin{block}{\scriptsize{There is a Linux kernel framework that can be used for