In our spatial annotations, these colours represent regions with different apparent signal intensity levels:
| strong | |
| moderate | |
| weak | |
| possible | |
| not detected | |
| detected (strong + moderate + weak) |
The cut-off points between levels are decided by the HUDSEN curators during the annotation procedure.
'Possible' is used to denote regions that may be artifactual or may represent true expression (based on curator descision).