Make TODOs more visible

Letter.tex

@@ -3,6 +3,8 @@
 \usepackage[T1]{fontenc}
 \usepackage[ngerman]{babel}
 \usepackage{url}
+\usepackage{xcolor}
+\newcommand{\todo}[1]{\textbf{\textcolor{red}{(TODO: #1)}}}
 \renewcommand{\familydefault}{\sfdefault}
 \usepackage{helvet}
 \setkomavar{fromname}{Tim Buchwaldt}