I have an idea for a little but very helpful feature for the color-palette mixer. The problem with using big pictures as a mixer-picture was also mentioned here (http://forum.tvpaint.com/viewtopic.php?f=21&t=7160) and I think it should be an own topic.
Problem
When using a picture in the mixer as a "color palette" there are no possibilities to move (or scale) the picture inside the border of the palette. You can resize the palette, but not the picture in it. It would be very comfortable if you could "grab" the picture (maybe while pressing ALT) and move it around to navigate to the part of the picture where the colors are laying you whish to use. Think it like using it as a normal project window.
Here are some picture to demonstrate.
1) The mixer holds a big picture. If you would like to find the color of the guys jacket you have to make the palette bigger.
2) If the palette is at an comfortable size (I only have two monitors

3) and 4) This shows a normal project window, where you can navigate very easy. Hold the ALT-key, hold LeftMouseButton and drag the picture to where you want to have it. Everybody knows it.
5) I think it would be a very good improvement to the color palette, if you could move a picture in the mixer as easy as a project in a project window.
And by-the-way I am also a proud owner of dhomas trenns picture palette. I love it and it has a nice zoom function (and much more!), but it is also not possible to drag a picture.