/usr/share/lxqt/lxqt.conf is in lxqt-session 0.12.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [General]
theme=frost
icon_theme=oxygen
single_click_activate=false
tool_button_style=ToolButtonTextBesideIcon
[Qt]
font="Sans,11,-1,5,50,0,0,0,0,0"
doubleClickInterval=400
style=Fusion
wheelScrollLines=3
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