How to change the color in description in Business layer in IDT

Hi Expert,

Users want to highlight description in color in Business layer object as per attach screenshot ...

I was told to change like --

<font color=blue>Description: Start date of D2D Opt Out</font><br>

<font color=green>Example: 28/11/2014</font><br>

<font color=red>Source: v_opt_out.Effective_Start_Dttm</font>

please can you guide where to change this. It's urgent as we're going live soon and it's to be done asap.

Thanks