About Pixy2 LEGO API implementation of EV3 block

[tkkim-robot]

Hi. Thanks for your great works on Pixy2.

I am using Pixy2 LEGO, and want to connect it to EV3 without Python Firmware.
So I used your Pixy2 ev3b block on ev3 G-program and it was able to run examples.
But I want to get more than one features in the G-program while line following.

I had works on Pixy2 API and I could get all the features using I2C protocol in Python. It works nicely. But I want it to work on G-program.
When I see the ev3b and vix implementation, I found that LEGO line follwing API is embedded on "0x5A", which is 90. But I couldn't found any hints of them among any documentations and googling.

Can you show me how to get all the features while line following on EV3 G-Program?

Thanks.