Hi,
I presume you mean in Settings > Display > Advanced > Font size.
I just thought it would be nice to have an icon that opens a drop-down to swap the font-size
for easier readability or to get an overview of the code.
Switching the Android font size kicks me out of DS edit back to DS Home.
In the same vein (seeing as much as possible) I reckon the top icons (docs, WiFi, etc) padding and margins could be shrunk
(see the bottom icons) which would also allow for a wider box for the name of the file currently being edited.
Similarly a little could be squeezed out of the vertical spacing of the search/replace bar, and it's popup.
Regards, ah