slim: add trisquel-belenos theme.

helpers/DATA/slim/add_trisquel-belenos_theme_conf.patch

+diff --git a/debian/slim.install b/debian/slim.install
+index 399b59e..8728df6 100644
+--- a/debian/slim.install
++++ b/debian/slim.install
+@@ -6,6 +6,8 @@ debian/debian-joy usr/share/slim/themes/
+ debian/debian-lines usr/share/slim/themes/
+ #softwaves
+ debian/debian-softwaves usr/share/slim/themes/
++#belenos
++debian/trisquel-belenos usr/share/slim/themes/
+ 
+ debian/local/Xsession.d/20slim_locale etc/X11/Xsession.d
+ 
+diff --git a/debian/source/include-binaries b/debian/source/include-binaries
+index 28f7732..06e7c5e 100644
+--- a/debian/source/include-binaries
++++ b/debian/source/include-binaries
+@@ -10,3 +10,5 @@ debian/debian-lines/panel.png
+ debian/debian-lines/background.png
+ debian/debian-softwaves/panel.png
+ debian/debian-softwaves/background.png
++debian/trisquel-belenos/panel.png
++debian/trisquel-belenos/background.png

helpers/DATA/slim/trisquel-belenos/COPYRIGHT.background

+The Trisquel Belenos Slim theme
+
+Upstream Authors: Luis Guzmán <ark@switnet.org>
+
+Copyright:
+
+  This package is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 dated June, 1991.
+
+  This package is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this package; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
+  USA.
+
+More info about trisquel logo here: https://trisquel.info/en/wiki/logo
+
+Downloaded from: 
+https://gitlab.trisquel.org/trisquel/trisquel-packages/-/tree/master/11.0/trisquel-wallpapers/data/usr/share/backgrounds

helpers/DATA/slim/trisquel-belenos/COPYRIGHT.panel

+Copyright (C) 2007-2008 Mike Massonnet <mmassonnet@gmail.com>
+Copyright (C) 2008 Yves-Alexis Perez <corsac@debian.org>
+Backdrop copied from gdm package
+Text "Login:" copied from SLiM default theme
+Background artwork is available at http://www.debianart.org/cchost/people/si0ux/
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+

helpers/DATA/slim/trisquel-belenos/slim.theme

+### slim taken from:
+### https://github.com/data-modul/slim/blob/master/THEMES
+## background
+# style of background: 'stretch', 'tile', 'center', 'color'
+background_style center
+background_color #000000
+
+# messages such as shutdown, reboot
+msg_x 50%
+msg_y 5%
+msg_color #ffffff
+msg_font DejaVu Sans:bold:size=12:dpi=96
+#msg_shadow_xoffset 1
+#msg_shadow_yoffset 1
+#msg_shadow_color #ff00ff
+
+# session messages eg: pressing F1:
+session_x 50%
+session_y 95%
+session_font DejaVu Sans:bold:size=12:dpi=96
+session_color #ffffff
+#session_shadow_xoffset 1
+#session_shadow_yoffset 1
+#session_shadow_color #000000
+
+# Welcome message position. (relative to the panel)
+# use -1 for both values or comment the options to disable
+# the welcome message
+welcome_x -1
+welcome_y -1
+welcome_font DejaVu Sans:bold:size=12:dpi=96
+welcome_color #ffffff
+#welcome_shadow_xoffset 1
+#welcome_shadow_yoffset 2
+#welcome_shadow_color #444444
+
+## panel
+# Horizonatal and vertical position for the panel.
+input_panel_x 50%
+input_panel_y 50%
+
+# input controls horizontal and vertical positions.
+# IMPORTANT! set input_pass_x and input_pass_y to -1
+# to use a single input box for username/password (GDM Style).
+# Note that this fields only accept absolute values.
+input_name_x 181
+input_name_y 169
+input_pass_x -1
+input_pass_y -1
+# Input controls font and color
+input_font DejaVu Sans:bold:size=12:dpi=96
+input_color #000000
+#input_shadow_xoffset 1
+#input_shadow_yoffset 1
+#input_shadow_color #ff00ff
+
+# 'Enter username' and 'Enter password' position(relative to the panel)
+# use -1 for both values to disable the message
+# note that in case of single inputbox the password values are ignored.
+username_x 260
+username_y 169
+password_x -1
+password_y -1
+username_font DejaVu Sans:bold:size=12:dpi=96
+username_color #bbbbbb
+#username_shadow_xoffset -1
+#username_shadow_yoffset -1
+#username_shadow_color #ff00ff
+
+# The message to be displayed. Leave blank if no message
+# is needed (ie, when already present in the panel image)
+#
+username_msg Please enter your username
+password_msg Please enter your password
+
+### slimlock taken from: 
+### https://github.com/data-modul/slim/blob/master/slimlock.conf
+# number of seconds of inactivity before the screen blanks. Default: 60
+dpms_standby_timeout 60
+
+# same as above, but the screen turns off. Default: 600
+dpms_off_timeout 600
+
+# number of seconds after entering an incorrect password before slimlock
+# will accept another attempt. Default: 2
+wrong_passwd_timeout 2
+
+# message to display after a failed authentication attempt.
+# Default: "Authentication failed"
+passwd_feedback_msg Authentication failed
+
+# message to display after a failed authentication attempt if the
+# CapsLock is on. Default: "Authentication failed (CapsLock is on)"
+passwd_feedback_capslock Authentication failed (CapsLock is on)
+
+# whether or not to display the username on themes with only a single
+# input box. 1 to show, 0 to disable. Default: 1
+show_username 0
+
+# whether or not to display SLiM's welcome message.
+# 1 to show, 0 to disable. Default: 0
+show_welcome_msg 0
+
+# whether or not to allow virtual terminals switching.
+# 1 to disallow, 0 to allow. Default: 1
+tty_lock 1
+
+# whether to ring the bell on authentication failure.
+# 1 to enable, 0 to disable. Default: 1
+bell 1
+
+# character to display when masking password.
+# Only the first character is used. Default: *
+passwd_char *

helpers/make-slim

+#!/bin/sh
+#
+#    Copyright (C) 2024 Luis Guzmán <ark@switnet.org>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+
+VERSION=0
+
+. ./config
+
+# Add trisquel belenos inspired theme to slim
+sed -i "/+current_theme/s|debian-softwaves|trisquel-belenos|" debian/patches/slim-conf.patch
+patch --no-backup-if-mismatch -p1 < $DATA/add_trisquel-belenos_theme_conf.patch
+cp -R $DATA/trisquel-belenos debian/
+
+changelog "Add trisquel-belenos theme."
+
+package