Themed Cell Style option changes to new palette.

[Tu_Nguyen115]

My themed cell style in Excel table suddenly changes to a completely different color palette. How could I restore the beautiful palette of themed cell style? Thank you very much. 

My current themed cell styles option:

 I want it to come back like this:

[#2]

@Tu_Nguyen115 

To revert to the previous theme, go to Page Layout > Themes and select 'Office 2013 - 2022 Theme' from the available themes. In my instance of Excel, the second theme reverts to the colors you prefer. 

[#3]

@flexyourdata Thank you very muchhhhh, I reverted to the previous theme successfully.