Creating a Matrix
I would like to create a Matrix, size of 5x5, in a form. More specifically I am trying to create a Risk Matrix which looks like this. So in order to do that I need to:
1) Have access to each individual cell of the matrix in order to manipulate its data. For example in some other programming language if I wanted to assign cell number  of a matrix called "Example_Matrix " the value 5, I would write "Example_Matrix = 5;"
2) Change the color of each individual cell background. For example cell  will have a green background while cell  will have a red background.
Is it possible?
I have read about Tables but this is not exactly what I need. That is, because on tables you cannot change the background of each individual cell. Also tables represent Collations, not Arrays, meaning I cannot have access on a specific cell.
Thank you in advance!