Read receipt checkmark color

Community Support
1

The read receipt checkmark color is light blue. With a white background this is not very good visible.
I had it red before. But in version 5 this doesn’t work anymore.
I solved up to version 4 with:

.read-receipt {
  	color: #1D74F5;
}

.read-receipt.read {
	color: #F5455C;
}

.read-receipts__user {
  	color: #1D74F5;
}

Are there any changes in version 5 ? Or is it broken ?