Problem with text

So, I managed to do this:

But I did it by creating another text, coloured it red, and put it on top of another text from which I removed that "transfer" line.

If you need help on complicated things, we need a file to help you, because we would not be able to recreate your construction.

Also consider using e.g. \red{element to be displayed in red} or TableText Command or SetColor command together with an If statement

If you need help on complicated things, we need a file to help you, because we would not be able to recreate your construction.

Also consider using e.g. \red{element to be displayed in red} or TableText Command or SetColor command together with an If statement

try if(pr_t==0,"",""pr_t) although

better if you put the values in spreadsheet, then create a table

The TableText command is usually nice for tables with a regular layout, and has an easy way to color whole lines. In your case it might not be suitable because I think you can't specify that single horizontal line with it.

Generally you can color texts with multiple colors however you want: For named standard colors you can use \red{<stuff>}, \purple{<stuff>}, etc. (as Simona had already mentioned). If this doesn't suffice, you can even specify RGB values directly by using fgcolor, e.g. \fgcolor{00ff88}{<stuff>} (hexadecimal RGB values).

If you want an empty string if a condition is not applied you need to specify that in the if command, and then you need to make sure that the if command returns a string in any case (that's why mathmagic's example has the quotation marks in the else branch before the variable).

Attached is a small example that makes use of all those things.