Suggestions that will improve the app significantly

[FatHyZayed]

1. Add Zoom in/out feature
2. Key binding feature to bind let's say Class number 1 with keyboard H button and the Visualize button to another button like Mouse MB4.
3. Size Adjust of the picture with the right panel that has the Class names and colors because some class names are too long and can't adjust that.
4. a Timer feature that counts how many hours you've been using the program, it starts counting only when the program is focused and you can reset it as you like.
5. an Undo button would also be helpful, Ctrl + Z, as if you removed something by mistake.

i hope these are add it because this is the best program i've seen that does the job pretty well.