Go from your homepage to your Organization settings in the left bar.
Then hit 
in the left bar and the following options will appear.
Hit 
to go to your archive and select the logo you want to use.
Tip: Upload an image of roughly 300 x 90 pixels to have the best fit.
If you uploaded your image fill in the colour code of your company with a # before the code. Don't know what the right code is? Go to this link to figure it out! Be aware: this is not a site we support or manage.
https://html-color-codes.info/colors-from-image/
Save the settings, refresh the page and you have your own environment!
N.B. the colours in the mobile app remain Capptions-red