/etc/X11/app-defaults/XLess is in xless 1.7-14.2.
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 31 32 | !$Header: /usr/sww/share/src/X11R6/local/applications/xless-1.5/RCS/XLess.ad,v 1.8 1994/06/01 00:46:29 dglo Exp $
*standardFont: fixed
*textFont: -misc-fixed-medium-r-normal--13-120-75-75-c-70-iso8859-1
*labelFont: -adobe-times-medium-r-normal--12-120-75-75-p-*-iso8859-1
*buttonFont: -adobe-new century schoolbook-medium-r-normal--12-120-75-75-p-*-iso8859-1
*standardCur: left_ptr
*dialogCur: center_ptr
.Paned.Text.Translations: #override\n\
Ctrl<Key>S: no-op(RingBell)\n\
Ctrl<Key>R: no-op(RingBell)\n\
<Key>space: next-page()\n\
<Key>F: next-page()\n\
Ctrl<Key>B: previous-page()\n\
<Key>B: previous-page()\n\
<Key>K: scroll-one-line-down()\n\
<Key>Y: scroll-one-line-down()\n\
<Key>Return: scroll-one-line-up()\n\
<Key>J: scroll-one-line-up()\n\
<Key>E: scroll-one-line-up()\n\
<Key>q: quit()\n
.Paned.Text.baseTranslations: #override\n\
<Key>space: next-page()\n\
<Key>F: next-page()\n\
Ctrl<Key>B: previous-page()\n\
<Key>K: scroll-one-line-down()\n\
<Key>Y: scroll-one-line-down()\n\
<Key>Return: scroll-one-line-up()\n\
<Key>J: scroll-one-line-up()\n\
<Key>E: scroll-one-line-up()\n\
<Key>q: quit()\n
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