title: How to change Google chart font size?
body: <p>Is it possible to change Google chart font size, my problem is that when i shrink width and height of whole chart, text becomes small and unreadable, any way to custom set font size?</p>
  
  <p><img src="https://i.stack.imgur.com/vQuv8.png" alt="enter image description here"></p>
  
  <p>Also is it posible to change tooltip size , described as a in the image?</p>