wal:tldr:8bec7
The command "wal -i ${image-png}" is a command-line instruction that is likely used in a Linux-based system.
"wal" is short for "pywal," which stands for "Generate and change colorschemes on the fly." It is a tool that can automatically generate color schemes (also known as wallpapers) based on the colors present in an image.
The option "-i" specifies the input file, the image from which the color scheme will be generated. In this case, the "${image-png}" indicates that the command is expecting a variable called "image-png" to be provided as input. The variable likely holds the path or name of an image file in the PNG format.
So, when executing this command, the "wal" tool will analyze the colors in the specified PNG image and generate a corresponding color scheme. This scheme can then be applied to the various elements of the system's graphical interface, providing a cohesive and visually pleasing look.