Make high and low color configurable from one place.
Make high and low color configurable from one place.

NLeSC/eEcology-script-wrapper,NLeSC/eEcology-script-wrapper,NLeSC/eEcology-script-wrapper,NLeSC/eEcology-script-wrapper,NLeSC/eEcology-script-wrapper,NLeSC/eEcology-script-wrapper