Exporting geotiff with a color palette

Hi
With regard exporting geotifs with color palette. We tried again this morning and it works!! The color ramp is attached to the geotif. Sorry to take your time, don’t know what the glitch was last night:(

Another question. When we open the geotif in QGIS it is a 3 band color image. Can we export the geotif in SNAP as a single band composite color image. the colors burned onto the image as a single band.

thanks