My icon won't change colour

I have uploaded two mini folder icons. The blank folder means no new post. The green folder means have new post. I tested to check whether the blank folder will turn to green colour by purposely posting to a forum. However it does not change colour. What happened?

It says if there are any new post the green folder will show up.


But the folder icon did not change colour even if I posted a new topic or reply post.


Does this only happen when I reply to my own posts? As of now, nobody is using the forum. I created a second account so that I can test run how the forum works.

Does this only happen when I reply to my own posts?

Correct. This is the reason, be sure, if someone else will post on forum you will see the green icon. Like on this support forum.

Your post will not show as a new post to you. Only other members' posts will show as new to you.