Can splash screen image be rotated

We use the Colibri T20 with the EDT7" resistive touch display, but the display is mounted rotated 180deg. We rotate the display once inside WEC7, but wondering if splash screen can be rotated? Or if we send you a splash screen to be converted would we need to first rotate the image 180 before converting?

Unfortunately this feature is not available in the bootloader. In case you need a rotated splash screen, please send us a rotated picture for conversion.

The conditions for converting splash screens you can find here.