Requesting Source Code for the existing Matrix Visualization?

[Roy_tap]

Just like to check whether there is anywhere that I could get the source code for the existing Matrix Visualization?

We would like to enhance the current Matrix to automate the Variance and Variance % field when we input the baseline and comparison value. We understand that it is very easy to replicate such formulation fields, however, due to the complex baseline and comparison values which consume relatively long processing time i.e. 3-4 seconds to complete. So when the report include the custom variance fields, the time require for the report to run will extend by 3x to 4x times.  

[Greg_Deckler]

@Roy_tap - Might be here:

https://github.com/Microsoft/PowerBI-Visuals/