Create color picker widget about apricot

[hessonit]

3 is quite nice but I prefer number 2. Name-tags are more user-friendly.

[panhania]

And I find the first one my favorite, simple and classic. The other two have this... chaotic spacing. Nevertheless, the differences are so insignificant that it took me a while to spot them. Do as you please, I'm fine with all of them.

[mkatch]

Well, @mrhania, you convinced me. I introduced 2 and 3 because I found the hue linear slider redundant and wanted to spare some space. But I agree that it was hard to get the spacing right. After clearing my mind I think the additional slider is not such a bad idea. The circle hue slider is needed because it gives finer resolution for hue which can be from range 0-360, the linear slider is for symmetry. I believe we will stick to 1 then. We can always improve later.

[mkatch]

As of 7408109, my main remark is that changing a value on each slider should affect the appearance of the ther sliders. This applies also to the wheel slider. That means, for example, that when the user decreases saturation, the color wheel also desaturates.