The true color product maps Landsat 8 band values B04, B03, and B02, which roughly correspond to red, green, and blue part of the electromagnetic spectrum, respectively, to R, G, and B components. The RGB bands with spectral resolution of 30 meters were pansharpened using the PAN band with spectral resolution of 15 meters. The result is a true color image with the resolution of 15 meters. The script can only be used with Landsat 8 Level 1, as Level 2 collection does not have a panchromatic band.
Pansharpened true color image of Rome. Acquired on 2020-07-30, processed by Sentinel Hub.