- blue ball: regular breakpoint, active (possibly with a hit count set)
- empty ball (i.e. white): breakpoint has been disabled (remove checkmark in the breakpoint view, or
disable
in context menu) - diagonal line through breakpoint: all breakpoints have been disabled (button
skip all breakpoints
in breakpoint view) - question mark next to breakpoint: a condition is active for this breakpoint (look under properties of the breakpoint)