how I do change color and size font of the labels of windows?

I am using the package ace-window and just viewed Mike Zemansky's video about this package. It is his configuration but I don't like what he does with label font. (use-package ace-window :ensure t :init (progn (global-set-key [remap other-window] 'ace-window) (custom-set-faces '(aw-leading-char-face ((t (:inherit ace-jump-face-foreground :height 2.0))))) ))

(custom-set-faces '(aw-leading-char-face ((t (:inherit ace-jump-face-foreground :height 3.0))))) The [source](https://oremacs.com/2015/02/27/ace-window-leading-char/) .