The "emotion" means a picture that user can paste it on the chat screen.
Actually you can modify the descriptions in this selector and you can use your
own pictures.
All emotion pictures are put into the directory "root\images\emotion\".
And all descriptions are stored in the file "description.txt"
If you open "description.txt" with the notepad then you will see:
So if you want to add a new emotion, please follow these steps:
1) copy your image file into the directory "root\images\emotion\"
2) edit the file "description.txt" and add a line for the new emotion.
3) save this file and then restart the chat room.