[SOLVED] Change userlist default empty avatar

Hi, I changed the default empty avatar with a custom logo, so that if a user doesn't upload his own pic, the logo will show as default.
To do this, I added my picture in /components/com_comprofiler/plugin/templates/default/images/avatar folder and set it default for empty in avatar field settings. In user profile the avatar I set is correctly shown.

The problem is that in the userlist is still shown the default Community Builder empty avatar (tnnophoto_n.png). How can I change it with a custom picture? I tried to overwrite tnnophoto_n.png, but with every update of the component my custom pic is replaced with the original one.

Is there a way to set the default userlist empty avatar pic with a custom one? Or is there any way to override it so that I don't have to change it with every new update?

Thank you!

I am pretty sure the CB Primer Book gives some guidance on this.
Did you download and study?

Yes, I studied.
The book gives guidance on the way to set the default empty profile image. Which I already did as described in my first post.
I found no reference to a similar option for userlist default empty avatar in the book, and the only reference on override I found is about language.
Did I miss something?
Can anybody help me?

The userlist outputs the thumbnail image. When supplying custom default images be sure you supply a full size and thumbnail version of your image. The thumbnail image should be named the same as the full size image except the name should be prefixed with tn. Examples as follows.

Full Size: avatar.jpg
Thumbnail tnavatar.jpg

You can not specify a custom default for userlist only beyond I guess having the thumbnail image a completely different image, but that will affect all outputs where thumbnail image is used.

Thank you so much, krileon.
I thought that would be the solution, but I renamed the thumbnail only with a 't' instead of 'tn'.
Now it's perfectly working.
Thanks again.