New

• Optimize 'Label objects', now compatible with Klipper and able to use Exclude Objects.
  
• Add Flowrate Calibration, including coarse calibration and fine calibration(thanks to OrcaSlicer).
  
• Add Pressure Advance Calibration, including PA Line, PA Pattern, PA Tower these three common methods (thanks to OrcaSlicer).
  
• Optimized User Guide, added Flowrate Calibration, Pressure Advance Calibration and MakerWorld (thanks to OrcaSlicer and Bambul Studio).
  
• Merge PrusaSlicer 2.6.1, including Arrange improvements, Cut tool improvements, and Emboss improvements (thanks to PrusaSlicer).

Improvements

• Add parameter 'First layer infill'.
• Add parameter 'First layer travel'.
• Add parameter 'Disable rapid cooling fan for the first', now you can control the rapid cooling fan better.
• Add filament ASA and Odorless ABS.
• Close 'Thick bridges', bridging supports will be easier to remove.
• The Z-seam is displayed by default in the preview.
• Optimize fan parameters according to different material characteristics.

Bug Fix

• Fix bug of Chamber Fan.
• Fix bug of default material, add material automatically choose PLA for the first time.