Correct Layer Weights for Strong Style Transfer to Prevent Subject Migration

[programming-pupil]

🐛 Issue
The original strong_style_transfer incorrectly included ​**structural layers (0-5 in SDXL)**​ in its weight allocation, causing unintended subject migration

🔧 Fix
File: IPAdapterPlus.py

# Original (Problematic)
elif weight_type == "strong style transfer":
    if is_sdxl:
        weight = {0:w, 1:w, 2:w, 4:w, 5:w, 6:w, 7:w, 8:w, 9:w, 10:w}  # Structural layers 0-5 included
    else:
        weight = {0:w, 1:w, 2:w, 3:w, 6:w, ...}  # SD1.5 structural layers included

# Fixed
elif weight_type == "strong style transfer":
    if is_sdxl:
        # Remove structural layers 0-3, reduce layer 4-5 weights
        weight = {
            4: w*0.3,  # Structural layer (reduced by 70%)
            5: w*0.5,  # Transition layer (reduced by 50%)
            8: w*1.2,  # Style layers (enhanced)
            9: w*1.2,
            10: w*1.2
        }
    else:
        weight = {  # SD1.5 fix
            4: w*0.2,  # Structural layer
            5: w*0.4,  # Transition layer
            9: w*1.1,  # Style layers
            10: w*1.1,
            11: w*1.1
        }

🚀 Key Improvements

1. ​Structural Layer Exclusion:

• SDXL layers 0-3 ​fully removed​
• Layer 4-5 weights reduced by ​**70%-50%**​ (SDXL/SD1.5)

2. Style Layer Enhancement:

• Layers 8-10 (style/texture) boosted by ​**20%**​

[programming-pupil]