Linux Candy is a series of articles covering interesting eye candy software. We only feature open source software in this series.
Some of the programs in this series are purely cosmetic, frivolous pieces of fun. Candy at their finest. But we also include some programs that aren’t purely decorative.
There’s a diverse range of programs included in this series. Programs such as eDEX-UI and Variety are actually highly practical programs. ASCIIQuarium has soothing and relaxing qualities for your desktop. Other programs included in this series (such as lolcat, cacafire) are included purely for their decorative qualities. And then there’s some really fun software that just raises a smile or two.
walrs is a command-line program that generates a color scheme from the dominant colors in an image. This palette can then be applied system-wide and on the fly in various programs.
Installation
We evaluated walrs with Manjaro, a popular Arch-based Linux distribution, and Ubuntu 25.04.
We manually installed the software. First clone the project’s GitHub repository with the command:
$ git clone https://github.com/pixel2175/walrs.git
Change into the newly created folder:
$ cd walrs
Now we can build and install the program:
$ make install
The image below shows the final output.
In Operation
We can generate a color scheme from an image by using the -ioption e.g.
$ walrs -i ~/PicsG/fantastic-nacional-palace-pena-sintra-lisbon-portugal-europe.jpg
The command also sets the background image by using an external program (such as xwallpaper, feh, hsetroot, nitrogen, or gsettings).
Features include:
- Rust-based: Fast and minimal resource usage.
- Generate terminal color schemes from images.
- Reload themes instantly.
- Compatible with pywal templates.
- Seamless integration with various terminal emulators including Hyper and applications.
- Specify the saturation and brightness value.
Summary
walrs is a handy command-line utility for generating color schemes. It’s lightweight and fast.
Here are the options.
Website: github.com/Pixel2175/walrs
Support:
Developer: Pixel
License: GNU General Public License v3.0
walrs is written in Rust. Learn Rust with our recommended free books and free tutorials.
Complete list of articles in this series:
| Linux Candy | |
|---|---|
| ASCIIQuarium | Embrace marine life from the terminal with beautiful ASCII art |
| ASCII Art Converter | A small utility that converts images into ASCII art |
| BobRossQuotes | Collection of quotes from Bob Ross |
| Boxes | Command line ASCII boxes |
| Buoh | Online strips comics reader |
| cacafire | Color ASCII fire |
| catclock | xclock with an enhanced cat mode |
| cbonsai | Generate bonsai trees in the terminal |
| christmasfetch | Festive cheer on the desktop |
| chucknorris | Chuck Norris jokes in your terminal |
| Clairvoyant | Like a magic 8-ball inspired fortune teller |
| cornyjokes | Corny jokes for the terminal |
| CMatrix | ncurses program that simulates the display from “The Matrix” |
| ctree | A Christmas tree right on your terminal |
| doge | Simple motd script |
| eDEX-UI | Sci-fi computer terminal emulator and system monitor |
| emoj | Simple tool that to find suitable emojis for pasting to your clipboard |
| Emote | Modern popup emoji picker |
| Evolvotron | Interactive generative art |
| Fantascene | Dynamic wallpaper changer |
| Fondo | Find beautiful wallpapers from Unsplash |
| gti | Typo-based curio inspired by Steam Locomotive |
| Hidamari | Python-based app that offers video wallpaper for Linu |
| Hollywood | Fill your console with Hollywood melodrama technobabble |
| lifecycler | Aquarium right in your terminal |
| linuxwave | Generate music from the entropy of Linux |
| lolcat | Rainbows and unicorns |
| Meme | Fun tool to create memes |
| No More Secrets | Recreates the data decryption effect from the Sneakers movie |
| nook | Plays Animal Crossing hourly themes on the hour |
| nyancat | Terminal-based Pop Tart Cat Animation |
| oneko | Animal chasing fun |
| pipes.sh | Animated pipes terminal screensaver |
| ponysay | cowsay reimplemention for ponies |
| projectM | Music visualizer originally based on Milkdrop |
| pscircle | A different take on the venerable ps command |
| PyBonsai | Generates procedural ASCII art trees |
| pyjokes | One line jokes for programmers |
| Pywal | Generate color schemes on the fly (not actively developed) |
| Relaxator | Relax to soothing sounds |
| ricksay | Rick and Morty quotes of the day |
| Rusty Aquarium | Monitoring by visualization |
| Steam Locomotive | C program written in 295 lines. It's harmless fun |
| Ternimal | Animated lifeform in the terminal |
| terminal-parrot | Party parrot time |
| tetris | Tile-matching puzzle video game in your terminal |
| Variety | Wallpaper manager with many desktops and wallpaper sources |
| WallGen | Generate HQ poly wallpapers with a few arguments. |
| WallpaperDownloader | Download, change, and manage wallpapers |
| wallust | Create 16 color palettes |
| walrs | Fast colorscheme generator |
| xcowsay | Displays a cow on your desktop with message |
| XDecorations | Add some festive cheer to your desktop |
| XScreenSaver | Framework and collection of screensavers |
| yosay | Like cowsay but with less cow |