Comment 3 for bug 171438

> There will probably be quiet a few more actions needed
> for Text objects but probably the most important two are:
> Text,
> Font, Size, Smaller Ctrl Shift ,
> Font, Size, Larger Ctrl Shift .
> (the commas give you an idea of the menu structure used
> in Freehand)

Filed as separate feature request:
Bug #862033 “Feature request: increase and decrease font size with toolbar buttons or keystrokes”
<https://bugs.launchpad.net/inkscape/+bug/862033>