Kvantum theme BigAdwaitaRound breaks inline rename (text overlap) in Krusader

[pigeonskiller]

Description

Using the BigAdwaitaRound Kvantum theme causes broken inline rename behavior in Krusader:
text becomes overlapped / unreadable while editing filenames.

Steps to reproduce

1. Enable Kvantum with BigAdwaitaRound theme
2. Open Krusader
3. Try renaming a file inline (F2 or slow double click)

Expected behavior

Text input should be clean and readable.

Actual behavior

Characters overlap and become unreadable during editing.

Workarounds

• QT_STYLE_OVERRIDE=Breeze krusader → works
• QT_STYLE_OVERRIDE=Fusion krusader → works
• Reverting to previous theme version (BigAdwaitaRound-old) → works

Important finding

The issue appears to be a regression in the current theme version.
The previous version (BigAdwaitaRound-old) does NOT exhibit this bug.

Environment

• KDE Plasma 6.6.4
• Qt 6.11.0
• Kvantum 1.1.6
• Krusader 2.9.0

Notes

This likely relates to ItemView / LineEdit rendering in Kvantum.

Screenshot:

Regression confirmed between theme versions - see attachment:
regression.patch