It was my first time using StandX, and I wasn't used to it; many of the features, positions, and sections are different from other perps.

It turns out they never intended to replicate the CEX trading interface from the start.
They designed the entire trading area to resemble a card table:

/ The upper part shows liquidity, price levels, and order status
/ The lower part is where your positions, operations, and risks are managed

It's not an outsourced UI, so every line of code was written by themselves, with colors, fonts, and interactions all customized (AG is also a product enthusiast).
The trading interface itself is part of the risk control.