modifications on the theme

source/talk.tex

@@ -1,5 +1,7 @@
 \documentclass{beamer}
+%\setbeamercovered{transparent}
 \usetheme{poul}
+%\usetheme{Madrid}
 \usepackage[utf8]{inputenc}
 \usepackage[svgpath=images/]{svg}
 \usepackage{graphicx}