Conditional formatting for matrix column headers based on closed month

[RAYAN123]

Hi all,

I am working with a Power BI matrix where I have months (January–December) displayed as column headers, as shown in the screenshot. no value will display, only the column

Kindly ask for below request solution

• Dynamically change the background color of the column headers
• If a month is financially closed → show green
• If a month is still open → show grey

I have a DAX in my model (e.g., a measure or flag indicating whether a month is closed):

Closed Month Flag =

IF(

    SELECTEDVALUE('Time'[IsClosedMonth]) = TRUE(),

    1,

    0

)

so the challenge is only related to applying the formatting to the headers.

Thanks for support!