Measure color won't match my line chart

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Hi everyone,

I am pretty new to Qlik, and I was asked to fix something in an existing report that I did not design myself.

I would like the color of my line chart to match the color of my date filter on the right (so red).

After searching this forum, I found that I had to set the color in the master measure, I went and look and it was already the case : 

Any idea why it is not working ?

Thanks !

Edit: added screenshot because of bad visibility of first one

[sandeep-singh · Accepted solution]

Edit Sheet -> Colors and Legend :

Instead of Auto, select Custom -> By Dimensions ->  FCDate or you can use Expression > copy FC_Current_ton expression and paste it in "if" Condition, for instance, If(expression of FC_Current_ton, red())

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Thank you !