The Font Size options in ESC > General Settings > General do not impact the chat tab font size. But they do impact the font size of guests docked in stations/structures. 
The option to toggle “Use Small Station icons” is gone.
The Font Size options in ESC > General Settings > General do not impact the chat tab font size. But they do impact the font size of guests docked in stations/structures.
The option to toggle “Use Small Station icons” is gone.