newflat: A new approach offering a wider spectrum

This new approach here is to offer a smaller range of colors, focusing on the most popular, but with much more variations. Something for each one of us. So, there are some heavily subdued colors for the nostalgic people. And there are also some vibrant colors to bring some happiness into those rainy days. But most of this new Mint-Yz color palette is made of well-balanced colors for a flat, modern user interface.

• A new approach to the color palette.
• UPSTREAM-RESET = GitHub fetch upstream, new git clone, replay all changes