1 min lesson
When code review cannot prove the UI
Work through this case: "The UI looks fine at first glance. Which warning sign do you check first?" Say what you would do and why.
Step 1 of 3
The happy path can hide this: Testing UI changes only by reading code.
Interactive diagram. Tab through its regions; each focused region shows its detail in the panel below.
diagram: compare
Pick a row to see what to look for.