Clone the texture by either
clicking on the Clonebutton,
pressing the keys ALT+Ins or selecting the Edit->Clone
Open the Color Adjustments with thebutton
or at the Tools menu.
pressing the Resetbutton,
all Scaling sliders should reside at 100% and the Bias
scrollbars at 0%.
Move the Hue Bias slider to a value between +15% and
+20%, which will result in a green color for the Aqua Button.
Press the OK button to apply the changes.