How to use bold or italics fonts
For now, the Logo Creator can't do bold or italics.
...BUT, you can always import your own fonts.
When you click on some text, you'll notice two font fields, the top contains the built in fonts. The bottom contains the fonts you already have on your computer.
Hop over to any free font archive and find your bold fonts (Ariel bold, or whatever you can find)
Install it just as you would any font, then launch the Logo Creator and you can use this bold (or italicized) font.
Embedded fonts are those built into the program, other programs cannot use the embedded fonts found in The Creator.
You choose any font you add to your computer from the "system fonts" menu in The Creator.
Hope this helps!