How to set text size / color for draw("text") opti

Hello,

I am drawing a 2D histogram with the “text” option:

TH2F * eff_h;

eff_h->Draw(“text”);

How can I set the text size and color of the numbers appearing
in each bin of the 2D histogram? I figured that I can change the
precision with

gStyle->SetPaintTextFormat(“5.2f”);

but not how to change the text size or color.

Best regards,
Vuko

It is explained in the doc here:
root.cern.ch/root/html/THistPainter.html#HP15