Only two questions:
1) how can I increase the font size in the tooltip that appears when i have the mouse over a piece of my gear (it seems font size 7 to me)? It is not in the interface editor if i'm not wrong.
2) how can I increase the size of the number reporting my hp and my heat, considering that my character panel has already 1.25 zoom and the font size seems 9 to me?
What size monitor do you have? I have tested out 1.25 just for fun when I was messing with my UI and it's overwhelmingly huge. I'm at somewhere between 0.80-0.85.
Do you mean your font looks like this? (at 7)
Perhaps you need a bigger screen. Our receptionist at work got a 24 ince screen because of her cataracs. Can you post a screenshot?