How do I change the color in the geometry display?

In Grasshopper. How do I change the color in the red cylinder at the top right of the working area which reads when one holds the mouse over it, “Draw Shaded Preview Geometry”.

You mean the Rhino viewports?

Colour of what? Hand picked colour for all previews? Custom colour for certain elements?

The color in the red cylinder at the top right of the working area which reads when one holds the mouse over it, “Draw Shaded Preview Geometry”.

I am asking because I am animating my programmed design and when I do, the original color of the red is framed in the animation. I wanted to display it as a blue.

Yes the Rhino viewports.

Click on the icon which looks like a sphere with left and right colours, there you can specify the colours for selected and unselected previews.