Orange bubbles equal the amount of unit milestones or boss levels.
Green bubbles are an additional boost that happens if you take each unit (or boss) to that milestone.
I'll work on those tooltips as soon as I finish working on the "after reload progress bar bug"
 "Achievement Unlocked 2"){kind=icon}
 "Overlod"){kind=icon}
 "Idle Dialectics"){kind=icon}
 "Jelly Lift"){kind=icon}
 "Pingy the Ping Idle RPG"){kind=icon}
Orange bubbles equal the amount of unit milestones or boss levels. Green bubbles are an additional boost that happens if you take each unit (or boss) to that milestone. I'll work on those tooltips as soon as I finish working on the "after reload progress bar bug"