conditional formatting column header

Hi jcastr02 

Unfortunately that the power bi doesn't support to change the background of the matrix or table's header.

Maybe you can try this:

I create a set of sample:

Then create a new table:

Table 2 = 
    ADDCOLUMNS(
        VALUES('Table (3)'[Column1]),
        "Y?N",SWITCH(
            'Table (3)'[Column1],
            "AA",UNICHAR(9989)&"AA",
            "BB",UNICHAR(10060)&"BB",
            "CC",UNICHAR(10060)&"CC",
            "DD",UNICHAR(9989)&"DD"
        )
    )

The result is as follow:

Link of unichar function:

UNICHAR function (DAX) - DAX | Microsoft Learn

The unicode of emoji:

Emoji unicode characters for use on the web (timwhitlock.info)

You need to transform the hex to dec:

Best Regards,

Zhengdong Xu

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