This small patch just changes the colors of Mosfet Liquid buttons to make them more look like Mac OS: the default button is blue and the other ones white/gray. See the screenshot. (Window decoration is a self-modified Liquid, but it has got a problem because it displays a second one under the close button.)
The patch also includes the pablorg's change for scrollbars, so they don't get smaller than 15 pixels.
Installation: unpack and run "patch widget-engine/liquid.cpp ml_btn.patch" in Liquid 0.7 source dir and recompile Liquid.
Comments and ideas how I can improve it are welcome.