Center the value of a cell / Put the value of a cell in color

Hello,

I would like to center the content of this view:

image

Also I would like that every time there is the letter R in the view, that the text color of the R is red.

image

Thanks.

for aligning content in center, custom style can be used:

for the second, you can make the whole text in the cell red but I do not know how to do only for 1 letter