Where can this color preference setting be changed?

Tools Maya
1

I am trying to change my polygon display colour so that it is easier to model in the viewport (Windows > Settings/preferences > Colour Settings). I have figured out what setting corresponds to every colour accept for one setting, which is the preselection highlight colour of components that are already selected, currently it is set to green, I would light to change it as it conflicts with another.

In my search to find this setting, I have turned every settings colour to black, so I could isolate it, and after turning all the colours to black this green colour is still showing…
Am I missing something here? Is this setting defined elsewhere or something? I also checked the preferences window, and did not find a relevant option there.
I even temporarily trashed my Maya settings, and it turns green is the default colour, strange…

2

So I learnt this is one of the few colour settings that you cant change.
The documentation for the command the dialog is using, displayColor even says:

This command changes or queries the display color for anything in the application that allows the user to set its color. The color is defined by a color index into either the dormant or active color palette. These colors are part of the UI and not part of the saved data for a model. This command is not undoable.