Layers don't change when "model background" color changes

​​​​​​​Hi , 

There are places with a "white" layer when the model background color is black. Its Ok. But I want to use the model background color as "grey" and I want the "white" areas to be "black". In the 2020-2021 version of Draftsight, what I want happens automatically, but in the 2022-2023 version, the "white" places do not change when the model background color is "grey". What is the reason for this situation? 

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