/usr/share/afterstep/ucf/wintabs is in afterstep-data 2.2.12-3.
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 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | *WinTabsGeometry 500x300+100+100
#*WinTabsMinTabMaxRows rows
#*WinTabsMinTabMaxColumns cols
*WinTabsMinTabWidth 30
*WinTabsMaxTabWidth 130
#*WinTabsUnfocusedStyle "style"
#*WinTabsFocusedStyle "style"
#*WinTabsStickyStyle "style"
*WinTabsUseSkipList
#*WinTabsPattern 0|1|2|3 <pattern> # 0 - Name, 1 - icon, 2 - res_name, 3 - res_class
*WinTabsPattern 2 "aterm" # 0 - Name, 1 - icon, 2 - res_name, 3 - res_class
*WinTabsAlign Left,Right,Top,Bottom
#*WinTabsBevel None,Left,Right,Top, Bottom, NoOutline
#*WinTabsFBevel None,Left,Right,Top, Bottom, NoOutline
#*WinTabsUBevel None,Left,Right,Top, Bottom, NoOutline
#*WinTabsSBevel None,Left,Right,Top, Bottom, NoOutline
# following is to try and organize tabs into groups by name.
# If two tabs have same beginning or the end of the name - they'll be
# organized into group and identical portion of the name will become the group name.
# Optional GroupNameSeparator allows to limit as to how group name and item name
# could be separated in the name. see examples below.
#
#*WinTabsGroupTabs
#*WinTabsGroupNameSeparator " "
*NeditTabsGroupTabs
*NeditTabsGroupNameSeparator " - "
*TermTabsGroupTabs
*TermTabsGroupNameSeparator ": "
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