Hi, attached is a patch I've recently been working to do with colorizing
proced buffers, similar to htop.

In particular, the current Emacs process id is highlighted purple in both
the process id and parent process id columns, session group leaders have
their process ids underlined, larger memory sizes for rss and vsize are
highlighted in darker shades of orange, and the first word in the args
property (the executable) is highlighted in blue - I've attached a couple
of screenshots.

The way I'd recommend to try it out would be:

(require 'proced)
(setq-default proced-auto-update-flag t)
(setq-default proced-auto-update-interval 1)
(setq proced-enable-color-flag t)

And then M-x proced.

Thanks, Laurence