Colored Mesh from GH to Google Earth

Hello everyone,

I am trying to visualise a colored mesh in Google Earth (each face has a different color). This mesh was generated in Grasshopper overlapped on a 3D vector of buildings.

I would like to visualise this mesh overlapped on the 3D environment in Google Earth, so that I can see the nice building textures behind my mesh.

It is easy to visualise this mesh via GHowl but ONLY WITHOUT COLORS. Any clue on how to define the color of each face in the mesh?

Should I import them as google earth polygons? Then how do I modify the color/transparency of each?

Since polygons are heavy to visualise, is there a way to visualise faces as points located at the face centroid and then attribute them a color?

Thank you for your reply.