Mixed Breed is based on the hand-lettered text from an old poster. While there are no lowercase characters in the Mixed Breed fonts, there are alternate versions of the uppercase characters in the lowercase character slots. Not only are the character shapes slightly different, but they are also have built-in baseline shifts, giving the set text a looser feel. The general rule of thumb is to set your text in uppercase if you want a rigid baseline, and in lowercase if you want more of a bouncy effect. Try alternating between the two character sets if you have duplicate letters which appear side by side.. In the PC version of this font family the style names are slightly different from those used in the Mac versions. But the fonts are otherwise identical.