Very early KDE 6 release.

misc/plymouth/plymouth-theme-smod/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+
+project(plymouth-theme-smod)
+
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+
+option(INSTALL_SERVICES "Install wait services" OFF)
+
+find_package(Plymouth REQUIRED)
+
+set(PLYMOUTH_THEME_INSTALL_DIR ${Plymouth_THEMESDIR})
+
+set(BOOT_ANIM_START_DELAY "2"    CACHE STRING "Time in seconds before the boot animation begins")
+set(BOOT_PROGRESS_CLEAR   "0.99" CACHE STRING "Value between 0 and 1 to clear the entire screen")
+set(SMOD_WAIT_BOOT        "6"    CACHE STRING "Time to delay Plymouth during boot")
+set(SMOD_WAIT_SHUTDOWN    "8"    CACHE STRING "Time to delay Plymouth during shutdown")
+
+configure_file(smod.plymouth ${CMAKE_CURRENT_BINARY_DIR}/smod.plymouth)
+configure_file(smod.script   ${CMAKE_CURRENT_BINARY_DIR}/smod.script)
+
+install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/preview.png
+              ${CMAKE_CURRENT_BINARY_DIR}/smod.script
+              ${CMAKE_CURRENT_BINARY_DIR}/smod.plymouth
+        DESTINATION ${PLYMOUTH_THEME_INSTALL_DIR}/smod)
+install(DIRECTORY assets
+        DESTINATION ${PLYMOUTH_THEME_INSTALL_DIR}/smod)
+
+if (INSTALL_SERVICES)
+configure_file(smod-plymouth-wait-for-animation.service          ${CMAKE_CURRENT_BINARY_DIR}/smod-plymouth-wait-for-animation.service)
+configure_file(smod-plymouth-wait-for-animation-poweroff.service ${CMAKE_CURRENT_BINARY_DIR}/smod-plymouth-wait-for-animation-poweroff.service)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/smod-plymouth-wait-for-animation-poweroff.service
+              ${CMAKE_CURRENT_BINARY_DIR}/smod-plymouth-wait-for-animation.service
+        DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/systemd/system)
+endif ()

misc/plymouth/plymouth-theme-smod/README.md

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+This Plymouth theme provides a boot and shutdown screen, as well as a password prompt for encrypted disks.
+
+*NOTE: this theme does not provide an update screen (e.g. Fedora)*
+
+### Installation
+
+```sh
+cmake -B build -DCMAKE_INSTALL_PREFIX=/usr .
+make -C build
+sudo make -C build install
+```
+
+Once installed, apply the theme by following your distribution's instructions on switching Plymouth themes.
+
+### Tweaks
+
+The theme can be tweaked by passing the following options to cmake:
+
+* ```
+  -DBOOT_ANIM_START_DELAY=3
+  ```
+  The time in seconds to delay the boot animation graphic.
+
+* ```
+  -DBOOT_PROGRESS_CLEAR=0.99
+  ```
+  A percentage between zero and one (e.g. 0.95 for 95%) that "clears" the screen at the specified boot progress. This simply sets the opacity of all onscreen graphics to zero.
+
+* ```
+  -DINSTALL_SERVICES=ON
+  ```
+  Two systemd services can optionally be installed to delay Plymouth ending by a specified amount of time. You may need to install these to see the full animation if your system boots/powers off too quickly. These are ```smod-plymouth-wait-for-animation.service``` and ```smod-plymouth-wait-for-animation-poweroff.service```, and are based on [this Arch Wiki extry](https://wiki.archlinux.org/title/Plymouth#Slow_down_boot_to_show_the_full_animation).
+
+* ```
+  -DSMOD_WAIT_BOOT=30
+  ``` 
+  The time in seconds to wait before Plymouth quits at boot.
+
+* ```
+  -DSMOD_WAIT_SHUTDOWN=10
+  ``` 
+  The time in seconds to wait before Plymouth quits at shutdown.
+
+