I noticed that the Pocillo icons are not included in the gtk-theme-pocillo Snap, so I made a Snap with the Pocillo and TelaBudgie icons.
Unfortunately, you need to use a command to connect it to the installed Snap applications, but it is a quick fix for anyone who wants to use the Pocillo icons.
The zip file I released has two sh files, one to install Snap and one just to connect it to the currently installed Snap applications.