Logic Masters Deutschland e.V.

Hello, enjoy this puzzle!
All feedback and comments will be much appreciated!

F-puzzles
CTC

Rules:

• Normal sudoku rules apply.
  
• Along thermometers, digits must increase from the bulb end (to clarify, all thermos end in the central cell of the grid).
  
• Digits along an arrow must sum to the digit in that arrow's circle.
  
• Digits separated by a white dot must differ by the indicated number.

• The purple line is a Renban line. Digits along the purple line are a set of consecutive, non-repeating digits in any order.
  
• The green line is a German Whisper line. Adjacent digits along the green line must differ by at least 5.
  
• The blue line is a Region Sum line. Digits along the blue line sum to the same value in each 3x3 box the line passes through.