Reset terminal modes with RIS
Make Triggers panel resizable.
Reduce the duplicated evaluation for DECSC/DECRC
Make the terminal save/restore the character ROM state with DECSC/DECRC
Save/Restore the origin mode with DECSC/DECRC or DECSET/DECRST 1049
Save/Restore the wraparound mode with DECSC/DECRC or DECSET/DECRST 1049
Initialize save area on startup
Reset save area with RIS