How should we improve Labels in Planner?

1) How do you use labels to organize your work?   for categorizing different types of tasks

2) How many labels do you need?  About 10. But please do not restrict the max amount to 10! Instead, just add a '+' icon so users can add more labels as needed

3) Would you like an ability to customize colors? If so, how would you use it?  I try to give different labels contrasting colors, so it is easy to distinguish them. I also give important labels a more saturated color

4) How would you like labels to appear on task cards? I like the way they are currently shown 

5) Is there anything else would you like to add in regards to labels? I would like the labels in the label selector to be sorted by recently used

Thanks