In version 4.0 of Color Schemer there were two light-bulb icons to lighten and darken your colours. This was so much easier, and I cannot explain why this was removed for the new update. Whereas in version 4.1 build 125 of Color Schemer this is now to be accessed from the "Adjust" function button at the top. There seemed to be a bug as the button does not function as intended. Please CoffeeCup can you review this again. Thanks.

Those features are still there. We just replaced the icon with numerical values and called them Brightness and Saturation. We have also assigned new shortcut keys for them. If you go to the Adjust Menu, you can see the new shortcut keys.