How does one make the editor text larger?

I went into settings and increased the font size, and then reopened C3 but there was no change.

Are you sure your browser size is set to 100%?

Sometimes I press ctrl + scroll the mouse by mistake and I shrink the text. Which is a real pain in the event sheets.

If you hold down ctrl and scroll the mouse up and down it will tell you what your browser is set to.

Menu(Top left) >> Settings