Update ESMValTool logo (#1374)

Author: Klaus Zimmermann

README.md

@@ -9,6 +9,8 @@
 [![Docker Build Status](https://img.shields.io/docker/cloud/build/esmvalgroup/esmvalcore)](https://hub.docker.com/r/esmvalgroup/esmvalcore/)
 [![Anaconda-Server Badge](https://anaconda.org/esmvalgroup/esmvalcore/badges/installer/conda.svg)](https://conda.anaconda.org/esmvalgroup)
 
+![esmvaltoollogo](https://github.com/ESMValGroup/ESMValCore/blob/main/doc/figures/ESMValTool-logo-2.png)
+
 ESMValCore: core functionalities for the ESMValTool, a community diagnostic
 and performance metrics tool for routine evaluation of Earth System Models
 in the Climate Model Intercomparison Project (CMIP).

doc/conf.py

@@ -160,7 +160,7 @@
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-html_logo = 'figures/ESMValTool-logo.png'
+html_logo = 'figures/ESMValTool-logo-2.png'
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -252,7 +252,7 @@
      \fi}
      \begin{titlepage}
      \begin{center}
-     \includegraphics[width=\textwidth]{figures/ESMValTool-logo.pdf}\par
+     \includegraphics[width=\textwidth]{figures/ESMValTool-logo-2.pdf}\par
      \vspace{2cm}
      {\Huge \bf \sffamily User's and Developer's Guide \par}
      \vspace{1cm}