Unless you’ve got a lot of screen space, the number bubbles on applications in the Dock can be hard to read, particularly if you have a 12″, 13″ or 15″ laptop. With the Dock in its default position at the bottom of the screen, it’s easy to read the number in the bubble.
Keeping the number of items in the Dock the same (the default count is 18 applications, a folder and the trash can), I’ve moved it to the left-hand side of the screen (I’ve already written about why to move the Dock to the left- or right-hand side of the screen). Is that 5 or 6 or 8 or 9 in the bubbles?
Remember, this is the default state of the Dock, just re-positioned, except now impossible to read without using the magnifying option, which is too awkward an experience for everyday use. Even on a 24″ iMac, reading the numbers inside bubbles can be difficult.
The solution is to have an option in System Preferences > General to increase the size of the bubbles. Currently this is only possible using DockStar, which at $20 is a bit steep for what is an OS X accessibility issue.
OS X El Capitan 10.11.6.