Grasshopper: Change the Display Properties of Preview

1.Change the Default Preview Properties:

To change the display settings (Color, Quality, Bump Preview etc...) of the preview in grasshopper, You have to locate the "Document Preview Settings" & "Preview Mesh Quality" on the top right corner of the grasshopper interface.

Preview Mesh Quality

Document Preview Settings

The Document Preview Settings widgets let you tweak the default color and transparency settings of the grasshopper file. There are three ways of doing it

Entering the desired RGB value of the required color
Entering the desired values of Hue, Saturation & Value of the requires color
Using the color picker to choose any color that's being displayed on the screen

You can even choose the color from another window unless and until your focusing window is grasshopper
Minimize the Rhino & Grasshopper window such that you are able to view the desired color that is in the other application(ex-Photoshop).

Grasshopper Document Preview Settings Widget

2.Change the Preview settings of individual objects.

You can also change the color of individual objects in the grasshopper using any of the many available nodes in grasshopper, like

Colour Picker
Colour Swatch
Colour HSL
Colour RGB
Colour CMYK
Colour LCH
Colour XYZ
Colour L*ab
Colour Wheel
Colour RGB(f)
Gradient

allows you to gradually change the gradient of color

Colour Node

3.Hide/Display the Edges in the Grasshopper Preview

To hide the Mesh Edges in the Preview of Grasshopper B-rep. Go to Display>Preview Mesh Edges

Preview Mesh Edges ON

Preview Mesh Edges OFF

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