Order of Style Elements is strange

With CKEditor v3.4b. Suppose you have the following styleset

{ name : 'normal', element : 'p' },
{ name : 'red', element : 'p' , attributes: { "class": "red" }},
{ name : 'green', element : 'p' , attributes: { "class": "green" }},
{ name : 'blue', element : 'p' , attributes: { "class": "blue" }},
{ name : 'h1', element : 'h1' },
{ name : 'h2', element : 'h2' }

If you then look at the combobox list, you will see the order: red, blue, h2, h1, green, normal. Why is the order that way?