Color actions in material settings
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                                                Click the color swatch to select a color from the Select Color dialog. 
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                                                Right-click the color swatch, or click the small black triangle, to access more color options.  Color Picker Color PickerSelect a color from the Select Color dialog.  Copy Color Copy ColorStores the current color in the clipboard.  Paste Color Paste ColorApplies the color stored in the clipboard. (The menu items below are only available when the color supports texture assignment.) Assign TextureSelect a texture to override the base color. Replace TextureSelect a texture to replace the current texture. Edit TextureChange settings of the current texture. Remove TextureReverts the material to use the base color. 
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                                                Drag a color from a color swatch to another in Materials, Environments, or Textures to copy the color. 
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                                                Drag a color from a color swatch to a file folder to create a Rhino color file (.rcolor).