To replace the Ranking page logo:
In case you installed the ContestCMS (version 1.2.0) already, you will find the image here:
/usr/local/lib/python2.7/dist-packages/cms-1.2.0-py2.7.egg/cmsranking/static/img/logo.png
If not, assuming you downloaded the project code to the folder cms:
cms/cmsranking/static/img/logo.png
Your new picture should be 200 pixels wide and 160 pixels tall.
This post is also available in: Αγγλικα