I am using Beamer's Metropolis theme which is freely obtained in Overleaf. The problem is that if I add the line

\addtobeamertemplate{background canvas}{\transfade[duration=1]}{}

to obtain effects in the presentation, in the PDF document there is a white line on the left side as you can see in this image

enter image description here

How I can avoid this?

I have used the following code, suggested by @samcarter

\addtobeamertemplate{background canvas}{\transfade[duration=1]}{} 
\begin{frame} abc 

But the result is the same

enter image description here

  • Looks like a very small sidebar? – user31729 Feb 7 '18 at 19:23
  • Yes. A thin vertical white line appears, it looks like a small bar. But it should not be there. – G al Cubo Feb 7 '18 at 19:24
  • @GalCubo What is the purpose of having \transfade[duration=1] in the background canvas? – user36296 Feb 7 '18 at 20:54
  • @GalCubo Can you add a MWE that reproduces the problem? \documentclass{beamer} \usetheme[background=dark]{metropolis} \addtobeamertemplate{background canvas}{\transfade[duration=1]}{} \begin{document} \begin{frame} abc \end{frame} \end{document} works fine for me. – user36296 Feb 7 '18 at 21:06
  • 2
    I think I've found the same question here tex.stackexchange.com/questions/375065/… – G al Cubo Feb 7 '18 at 21:35