When you create your Simego Online environment you may wish to customise your instances so that they can be easily recognisable at a glance.
This may be done to distinguish between DEV/PROD/UAT environments, so that users work on the correct environment.
To change the colour of the instance go to Settings
> System Settings
> Visual UI Theme
and then choose the theme you wish to apply from the drop down.
Once you are happy click Save
at the bottom of the page.