What is UX in trading?

Excuse me, could you elaborate on what UX stands for in the context of trading? I'm curious to understand how it plays a role in enhancing the overall experience for traders when navigating various platforms and interfaces. Could you perhaps provide some examples of how UX design principles are applied to trading platforms to improve user satisfaction and efficiency? Additionally, how does a well-designed UX contribute to better trading outcomes and overall profitability for traders?