The TB6612FNG modules come without the pin headers, so there are four ways it could be 'plugged in' to the PCB.
Judging from the 'render' ukmarsbot-brd-20190731A.pdf it is a little unclear whether the TB6612FNG labels will be on the PCB silkscreen. There are two different colours of legend shown. That might be an artefact of the CAD software, or the ways 'layers' are set up, or an indication that they have a different status.
Putting the modules pin labels onto the UKMaRS PCB silkscreen should help reduce confusion, so that the one correct orientation is clear.
Urgent, first Revision.
The TB6612FNG modules come without the pin headers, so there are four ways it could be 'plugged in' to the PCB.
Judging from the 'render' ukmarsbot-brd-20190731A.pdf it is a little unclear whether the TB6612FNG labels will be on the PCB silkscreen. There are two different colours of legend shown. That might be an artefact of the CAD software, or the ways 'layers' are set up, or an indication that they have a different status.
Putting the modules pin labels onto the UKMaRS PCB silkscreen should help reduce confusion, so that the one correct orientation is clear.