In order to change the color of your logo, you need to follow next steps:
Choose the clipart you want to change.
Select the color type. You may choose from setting a single color (Solid), two colors (Linear gradient) or four colors (Web 2.0 gradient).
Click on the circle to open the pallet. Once you chose the color, you may move the color “circle” to left or right in order to adjust the transition from one color to another.