There are a couple of presets available for the buttons for easy usage. You can however change the background color, text color or text shadow color to your liking! See the examples below, or see the detailed explanation below.
Presets
[button title="Click me" url="#" preset="red" gradient="false"]
[button title="Click me" url="#" preset="cyan" gradient="false"]
[button title="Click me" url="#" preset="yellow" gradient="false"]
[button title="Click me" url="#" preset="black" gradient="false"]
[button title="Click me" url="#" preset="blue" gradient="false"]
[button title="Click me" url="#" preset="green" gradient="false"]
[button title="Click me" url="#" preset="purple" gradient="false"]
[button title="Click me" url="#" preset="orange" gradient="false"]
With gradients
[button title="Click me" url="#" preset="red" gradient="true"]
[button title="Click me" url="#" preset="cyan" gradient="true"]
[button title="Click me" url="#" preset="yellow" gradient="true"]
[button title="Click me" url="#" preset="black" gradient="true"]
[button title="Click me" url="#" preset="blue" gradient="true"]
[button title="Click me" url="#" preset="green" gradient="true"]
[button title="Click me" url="#" preset="purple" gradient="true"]
[button title="Click me" url="#" preset="orange" gradient="true"]
With rounded corners
[button title="Click me" url="#" preset="red" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="cyan" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="yellow" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="black" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="blue" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="green" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="purple" gradient="true" radius="5px"]
[button title="Click me" url="#" preset="orange" gradient="true" radius="5px"]
Big buttons
[button title="Click me" url="#" preset="red" gradient="true" radius="5px" customstyle="font-size:24px;font-weight:bold;"]
[button title="Click me" url="#" preset="cyan" gradient="true" radius="5px" customstyle="font-size:24px;font-weight:bold;"]
[button title="Click me" url="#" preset="yellow" gradient="true" radius="5px" customstyle="font-size:24px;font-weight:bold;"]
Long buttons
[button title="This is very very very very long button!" url="#" preset="green" gradient="true" radius="5px" customstyle="font-size:16px;font-weight:bold;padding:6px 11px;"]