Replacing the login and lock screens on a Raspberry Pi

My uConsole computer finally arrived after a 10-month delay. I started kicking the tires by installing fun software on it, and quickly realized it’d run better if it looked cool. Here’s how I did it. Change the boot image Raspberry Pi OS uses Plymouth to make show a boot splashscreen. By default, it displays the image file at /usr/share/plymouth/themes/pix/splash.png. I’m sure there’s a “better” way to do this, but I simply replaced that file with my own 1280x720 image (to match the screen’s native resolution): $ cd /usr/share/plymouth/themes/pix $ sudo cp splash.png splash.png-dist # Keep a backup $ sudo cp myimage.png splash.png $ sudo plymouth-set-default-theme --rebuild-initrd pix That last line rebuilds the initrd image so that the kernel will use the new image. Change the lock image I use Wayland instead of X11, and that setup uses pi-greeter to show a lock screen. That requires editing /etc/lightdm/lightdm.conf. I copied my new user image to…