key features: 1. windows xp/vista standard button, toolbar button, dropdown button, extend button styles and effects, can also translates to specified style automatically when system can't support the visual style; 2. office 2000, 2003, 2007 color picker styles and glass effects; 3. can load or manage ramp palette file(.pal) at design mode and runtime, add, edit, clear ramp color nodes and generate palette dynamically and optionally; 4. supports full default/custom color item features and can switch on/off; 5. color popup window cells dimension is changeable, and can customize design and resize feature smartly; 6. switchable from standard button to dropdown button; 7. color button/custom button icon/bitmap and caption features; 8. color button and dropdown popup window full shadow features; 9. color button, default item, custom item and all color cells tooltips features; 10. color button, default item and custom item full glass button effects features; 11. dropdown color popup window border style changeable; 12. a 'click' event interface with handle user mouse click processing; 13. a 'showcustomcolordialog' event interface with supporting user custom color dialog; 14. attached a power ramp palette editor to create ramp palette file(.pal) for the color picker using; 15. 100% .net and visual studio 2005 development platforms compatible; 16. have full installation, uninstall, demonstration and related help documents.