Display only processes by a user in htop?

Solution 1:

From man htop:

   -u --user=USERNAME
          Show only the processes of a given user

So, if you run htop -u colord, you'll only see processes by the user colord.

Solution 2:

Another possibility is to press the 'u' key in htop. A selector that allows you to filter the process list by users will be displayed.