You can edit content by loging in an hovering over the elements (logo, mission statement & description).
The description uses md so you can add gif, video, emojis, etc.
You’ll need the email you used to create your user as a core contributor of the collective.
Please send us an image to firstname.lastname@example.org
For changing/adding core contributors please send us a note with their emails to email@example.com
If you want more customization you can make a PR to our repos opencollective-website:
We have released V2 of open Collective, now you can edit most of this from the EDIT COLLECTIVE menu.