Add a better color picker dialog.

[madeso]

The current color picker dialog looks horrible and we need a better responsive version with "peek" functionality

[madeso]

Perhaps it shouldn't be a dialog and instead be a "smart" dropdown like this: http://wxcode.sourceforge.net/components/keybinder/

[madeso]

Inspirations Nice collection of colors in a grid. Some tiles should perhaps be larger than others? http://social.technet.microsoft.com/wiki/contents/articles/27747.windows-phone-custom-color-picker-for-windows-phone.aspx

Another dropdown like example:

HSL color picker: http://www.workwithcolor.com/hsl-color-picker-01.htm

Hexagon color picker: http://www.w3schools.com/tags/ref_colorpicker.asp

Nice color picker: https://dribbble.com/shots/1134399-Color-Picker-UI-FREE-PSD/attachments/145556

Nice color picker demo: https://www.youtube.com/watch?v=2LOWrD2Mfhw

[madeso]

Tabs in the color picker dialog should be:

Wheel: https://en.wikipedia.org/wiki/Color_wheel

Triangle: https://en.wikipedia.org/wiki/Color_triangle

Color checker: https://en.wikipedia.org/wiki/ColorChecker

Square with slider: based on a hsv model? https://en.wikipedia.org/wiki/HSL_and_HSV

Combos: Perhaps handpicked from http://www.colorcombos.com/popular-color-combinations

Recent colors

Color grid: (Kelly's and Boynton's list)[http://stackoverflow.com/questions/470690/how-to-automatically-generate-n-distinct-colors?rq=1] Random colors from (wikipedia)[https://en.wikipedia.org/wiki/Lists_of_colors]

[madeso]

Make a custom widget and control and add it as a standard wxWidget control? http://docs.wxwidgets.org/3.0/overview_customwidgets.html