# How change the color of shading side bar in Marburg theme?

I´d like to know how change the color of shading side bar in Marburg theme. Concretely, the top and the bottom color. Maybe rewriting the file?

Thanks!

Marburg theme installs a side-bar on the right. You can change the color using the sidebar canvas right template. The top color is given by the key top=<top-color> and the bottom color by the key bottom=<bottom-color>. In the next example, the top color is black and the bottom color is green.

\documentclass{beamer}

\usetheme{Marburg}