Yep, the kit alpha is just orange, but it's really easy in photoshop to recolour. Here's how I do it:
Select the alpha layer, then in the menu select Image>Adjustment>Hue/Saturation.
Play around with the Hue and Saturation sliders until you have the colour you want. Sometimes just changing the Hue slider makes the element too fluoro, so I reduce the Saturation till I'm happy. Press OK.
Do the same for each alpha character:
Hope that helps!