# beamer: Difference between \setbeamertemplate{background canvas} and \usebackgroundtemplate (and \setbeamertemplate{background})

## Question

When I want to change the background of a beamer presentation I used to use something like this:

\setbeamertemplate{background canvas}%
{%
\includegraphics[width=\paperwidth, height=\paperheight]%
{%
Picture.jpg
}%
}


which is also documented in the beamer documentation. In some answers here I often see

\usebackgroundtemplate{
\includegraphics[width=\paperwidth,height=\paperheight]{Picture.jpg}
}

1. Is there a best practice?
2. Surprisingly I can't find \usebackgroundtemplate when searching in the beamer documentation.

## Related

• Concerning your questions what \usebackgroundtemplate does:
It's defined in beamerbasecompatibility.sty as
\def\usebackgroundtemplate{\setbeamertemplate{background canvas}}

• For the difference of \setbeamertemplate{background canvas} and \setbeamertemplate{background}: