You thought about using the "Online Banner" Add-on?
Failing that:
Use this CSS (Open up "message_user_info" template)
.messageUserBlock div.avatarHolder .onlineMarker {
position: absolute;
top: 112px;
left: 112px;
border: 8px solid transparent;
border-bottom-color: rgb(127, 185, 0);
border-right-color: rgb(127, 185, 0);
-webkit-border-top-left-radius: 5px;
-moz-border-radius-topleft: 5px;
-khtml-border-top-left-radius: 5px;
border-top-left-radius: 5px;
-webkit-border-top-right-radius: 3px;
-moz-border-radius-topright: 3px;
-khtml-border-top-right-radius: 3px;
border-top-right-radius: 3px;
-webkit-border-bottom-left-radius: 3px;
-moz-border-radius-bottomleft: 3px;
-khtml-border-bottom-left-radius: 3px;
border-bottom-right-radius: 3px;
}
NOTE -
- This probably wont work on mobiles..
- The bold text is what I replaced I.E. "border-bottom-right-radius: 3px;" replaces "border-bottom-left-radius: 3px;"
Result:
View attachment 83823
View attachment 83822