I have read all threads about the font size, but I must be blind. I am using version 3.4.1 and have looked in the options for a place to change the size of the text in the sidebar. I have changed the title size and have tried to input info in the Widget Content Box area, but nothing and under Widget List items there appears to only be changes for (Left Margin for whole Item, Left Border Width for Links, Left Border Color for Links, Left Border Hover Color for Links, Left Padding for Links, Link Text Weight, Link Text Color , Link Text Hover Color)

What am I missing? Can you change the font size here?

Cheers,
Jules

You can do this with a CSS Insert

td#left, td#right {
font-size: ...
}