Learning Swift during COVID-19
What can be better than learning new things ... during the confinement.
When located in the Main.storyboard press Command + Shift + L to open the Library.
Missing contraints (red): when we do not know how to locate some object with respect to anything. Localization issue (yellow): the element has no layout constraints.
To see the constraints, go to the Inspector. To make one element relative to another element, make sure they are not overlapping!
To make a line break in a label name, press Control + Enter.