The difficulty with resizing the font using the “Increase Font” “Decrease Font” buttons is that they only work when a single font size is selected. If there is one word/character that is a different size within the selection, then these buttons don’t work, and so ensues a rather lengthy game of hide and seek to locate, select, resize, repeat 
What I propose is a ‘smart’ version of this, where (for example) text including font sizes of 12 and 14 is selected, the “Increase Font” button would increase the font size to 14 and 16 respectively.
I would love to see this feature.
Thanks!