Améliorations / Improvements

• Adjusted the probability of negative effects from drinking marktails (7% -> 5%).
  
• Improved camera movement in editor (scrolling with the mouse wheel)
  
• Reduced customer unhappiness percentage (6% -> 4%).
  
• Lowered the stain spawn rate on the ground (1 in 8 chance -> 1 in 10 chance).
  
• Adjusted stain spawn frequency during rain to reduce their impact (200% -> 135%).
  
• Happy customers now generate significantly more global happiness (3 -> 7).
  

Fixes / Corrections

• Fixed an issue where the leaderboard would not load properly.