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It’s been a while since we last shared a major update of Graphs. We’ve had a few minor releases, but the last time we had a substantial feature update was over two years ago.
This does not mean that development has stalled, to the contrary. But we’ve been working hard on some major changes that took some time to get completely right. Now after a long development cycle, we’re finally getting close enough to a release to be able to announce an official beta period. In this blog, I’ll try to summarize most of the changes in this release.
New data types
In previous version of Graphs, all data types are treated equally. This means that an equation is actually just regular data that is generated when loading. Which is fine, but it also means that the span of the equation is limited, the equation cannot be changed afterward, and operations on the equation will not be reflected in the equation name. In Graphs 2.0, we have three distinct data types: Datasets, Generated Datasets and Equations.
Datasets are the regular, imported data that you all know and love. Nothing really has changed here. Generated Datasets are essentially the same as regular datasets, but the difference is that these datasets are generated from an equation. They work the same as regular datasets, but for generated datasets you can change the equation, step size and the limits after creating the item. Finally, the major new addition is the concept of equations. As the name implies, equations are generated based on an equation you enter, but they span an infinite range. Furthermore, operations you perform on equations are done analytically. Meaning if you translate the equation `y = 2x + 3` with 3 in the y-direction, it will change to `y = 2x + 6`. If you perform a derivative, the equation will change to `y = 2x` etcetera. This is a long-requested feature, and has been made possible thanks to the magic of sympy and some trickery on the canvas. Below, there’s a video that demonstrates these three data types.
https://blogs.gnome.org/sstendahl/files/2026/04/Screencast-From-2026-04-14-12-23-56.webmRevamped Style Editor
We have redesigned the style editor, where we now show a live preview of the edited styles. This has been a pain point in the past, when you edit styles you cannot see how it actually affects the canvas. Now the style editor immediately tells you how it will affect a canvas, making it much easier to change the style exactly to your preferences.
We have also added the ability to import styles. Since Graphs styles are based on matplotlib styles, most features from a matplotlib style generally work. Similarly, you can now export your styles as well making it easier to share your style or simply to send it to a different machine. Finally, the style editor can be opened independently of Graphs. By opening a Graphs style from your file explorer, you can change the style without having to open Graphs.
We also added some new options, such as the ability to style the new error bars. But also the option to draw tick labels (so the values) on all axes that have ticks.
The revamped style editorImproved data import
We have completely reworked the way data is imported. Under the hood, our modules are completely modular making it possible to add new parsers without having to mess with the code. Thanks to this rework, we have added support for spreadsheets (LibreOffice .ods and Microsoft Office .xlxs) and for sqlite databases files. The UI automatically updates accordingly. For example for spreadsheets, columns are imported by the column name (alphabetical letter) instead of an index, while sqlite imports show the tables present in the database.
The new import dialogFurthermore, the import dialog has been improved. It is not possible to add multiple files at once, or import multiple datasets from the same file. Settings can be adjusted for each dataset individually. And you can even import just from a single column. We also added the ability to import error-bars on either axes, and added some pop-up buttons that explain certain settings.
Error bars
I mentioned this in the previous paragraph, but as it’s a feature that’s been requested multiple times I thought it’d be good to state this explicitly as well. We now added support for error bars. Error bars can easily be set on the import dialog, and turned on and off for each axis when editing the item.
Reworked Curve fitting
The curve fitting has been reworked completely under the hood. While the changes may not be that obvious as a user, the code has basically been completely replaced. The most important change is that the confidence band is now calculated completely correctly using the delta-method. Previously a naive approach was used where the limits were calculated using the standard deviation each parameter. This does not hold up well in most cases though. The parameter values that are given are also no longer rounded in the new equation names (e.g. 421302 used to be rounded to 421000). More useful error messages are provided when things go wrong, custom equations now have an apply button which improves smoothness when entering new equations, the root mean squared error is added as a second goodness-of-fit measure, you can now check out the residuals of your fit. The residuals can be useful to check if your fit is physically correct. A good fit will show residuals scattered randomly around zero with no visible pattern. A systematic pattern in the residuals, such as a curve or a trend suggests that the chosen model may not be appropriate for the data.
The old version of Graphs with the naive calculation of the confidence band The new version of Graphs with the proper calculation of the confidence band.UI changes
We’ve tweaked the UI a bit all over the place. But one particular change that is worth to highlight, is that we have moved the item and figure settings to the sidebar. The reason for this, is that the settings are typically used to affect the canvas so you don’t want to lose sight of how your setting affects the canvas while you’re updating. For example, when setting the axes limits, you want to see how your graph looks with the new limit, having a window obstructing the view does not help.
Another nice addition is that you can now simply click on a part of the canvas, such as the limits, and it will immediately bring you to the figure settings with the relevant field highlighted. See video below.
https://blogs.gnome.org/sstendahl/files/2026/04/Screencast-From-2026-04-14-11-30-21.webmMobile screen support
With the upcoming release, we finally have full support for mobile devices. See here a quick demonstration on an old OnePlus 6:
https://blogs.gnome.org/sstendahl/files/2026/04/smoll.webmFigure exporting
One nice addition is the improved figure export. Instead of simply taking the same canvas as you see on the screen, you can now explicitly set a certain resolution. This is vital if you have a lot of figures in the same work, or need to publish your figures in academic journals, and you need consistency both in size and in font sizes. Of course, you can still use the previous setting and have the same size as in the application.
The new export figure dialogMore quality of life changes
The above are just a highlight of some major feature updates. But there’s a large amount of features that we added. Here’s a rapid-fire list of other niceties that we added:
And a whole bunch of bug-fixes, under-the-hood changes, and probably some features I have forgotten about. Overall, it’s our biggest update yet by far, and I am excited to finally be able to share the update soon.
As always, thanks to everyone who has been involved in this version. Graphs is not a one-person project. The bulk of the maintenance is done by me and Christoph, the other maintainer. And of course, we should thank the entire community. Both within GNOME projects (such as help from the design team, and the translation team), as well as outsiders that come with feedback, report or plain suggestions.
Getting the beta
This release is still in beta while we are ironing out the final issues. The expected release date is somewhere in the second week of may. In the meantime, feel free to test the beta. We are very happy for any feedback, especially in this period!
You can get the beta directly from flathub. First you need to add the flathub beta remote:
flatpak remote-add --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
Then, you can install the application:
flatpak install flathub-beta se.sjoerd.Graphs
To run the beta version by default, the following command can be used:
sudo flatpak make-current se.sjoerd.Graphs beta
Note that the sudo is neccesary here, as it sets the current branch on the system level. To install this on a per-user basis, the flag –user can be used in the previous commands. To switch back to the stable version simply run the above command replacing beta with stable.
The beta branch on update should get updated somewhat regularly. If you don’t feel like using the flathub-beta remote, or want the latest build. You can also get the release from the GitLab page, and build it in GNOME Builder.
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Back in 2019, we undertook a radical overhaul of how GNOME app icons work. The old Tango-era style required drawing up to seven separate sizes per icon and a truckload of detail. A task so demanding that only a handful of people could do it. The "new" style is geometric, colorful, but mainly achievable. Redesigning the system was just the first step. We needed to actually get better icons into the hands of app developers, as those should be in control of their brand identity. That's where app-icon-requests came in.
As of today, the project has received over a hundred icon requests. Each one represents a collaboration between a designer and a developer, and a small but visible improvement to the Linux desktop.
How It WorksIdeally if a project needs a quick turnaround and direct control over the result, the best approach remains doing it in-house or commission a designer.
But if you're not in a rush, and aim to be a well designed GNOME app in particular, you can make use of the idle time of various GNOME designers. The process is simple. If you're building an app that follows the GNOME Human Interface Guidelines, you can open an icon request. A designer from the community picks up the issue, starts sketching ideas, and works with you until the icon is ready to ship. If your app is part of GNOME Circle or is aiming to join, you're far more likely to get a designer's attention quickly.
The sketching phase is where the real creative work happens. Finding the right metaphor for what an app does, expressed in a simple geometric shape. It's the part I enjoy most, and why I've been sharing my Sketch Friday process on Mastodon for over two years now (part 2). But the project isn't about one person's sketches. It's a team effort, and the more designers join, the faster the backlog shrinks.
HighlightsHere are a few of the icons that came through the pipeline. Each started as a GitLab issue and ended up as pixels on someone's desktop.
Alpaca, an AI chat client, went through several rounds of sketching to find just the right llama. Bazaar, an alternative to GNOME Software, took eight months and 16 comments to go from a shopping basket concept through a price tag to the final market stall. Millisecond, a system tuning tool for low-latency audio, needed several rounds to land on the right combination of stopwatch and waveform. Field Monitor shows how multiple iterations narrow down the concept. And Exhibit, the 3D model viewer, is one of my personal favorites.
You can browse all 127 completed icons to see the full range — from core GNOME apps to niche tools on Flathub.
Papers: From Sketch to ShipTo give a sense of what the process looks like up close, here's Papers — the GNOME document viewer. The challenge was finding an icon that says "documents" without being yet another generic file icon.
The early sketches explored different angles — a magnifying glass over stacked pages, reading glasses resting on a document. The final icon kept the reading glasses and the stack of colorful papers, giving it personality while staying true to what the app does. The whole thing played out in the GitLab issue, with the developer and designer going back and forth until both were happy.
While the new icon style is far easier to execute than the old high-detail GNOME icons, that doesn't mean every icon is quick. The hard part was never pushing pixels — it's nailing the metaphor. The icon needs to make sense to a new user at a glance, sit well next to dozens of other icons, and still feel like this app to the person who built it. Getting that right is a conversation between the designer's aesthetic judgment and the maintainer's sense of identity and purpose, and sometimes that conversation takes a while.
Bazaar is a good example.
The app was already shipping with the price tag icon when Tobias Bernard — who reviews apps for GNOME Circle — identified its shortcomings and restarted the process. That kind of quality gate is easy to understate, but it's a big part of why GNOME apps look as consistent as they do. Tobias is also a prolific icon designer himself, frequently contributing icons to key projects across the ecosystem. In this case, the sketches went from a shopping basket through the price tag to a market stall with an awning — a proper bazaar. Sixteen comments and eight months later, the icon shipped.
Get InvolvedThere are currently 20 open icon requests waiting for a designer. Recent ones like Kotoba (a Japanese dictionary), Simba (a Samba manager), and Slop Finder haven't had much activity yet and could use a designer's attention.
If you're a designer, or want to become one, this is a great place to start contributing to Free software. The GNOME icon style was specifically designed to be approachable: bold shapes, a defined color palette, clear guidelines. Tools like Icon Preview and Icon Library make the workflow smooth. Pick a request, start with a pencil sketch on paper, and iterate from there. There's also a dedicated Matrix room #appicondesign:gnome.org where icon work is discussed — it's invite-only due to spam, but feel free to poke me in #gnome-design or #gnome for an invitation. If you're new to Matrix, the GNOME Handbook explains how to get set up.
If you're an app developer, don't despair shipping with a placeholder icon. Follow the HIG, open a request, and a designer will help you out. If you're targeting GNOME Circle, a proper icon is part of the deal anyway.
A good icon is one of those small things that makes an app feel real — finished, polished, worth installing. Now that we actually have a place to browse apps, an app icon is either the fastest way to grab attention or make people skip. If you've got some design chops and a few hours to spare, pick an issue and start sketching.
Need a Fast Track?If you need a faster turnaround or just want to work with someone who's been helping out with GNOME's visual identity for as long as I can remember — Hylke Bons offers app icon design for open source projects through his studio, Planet Peanut. Hylke has been a core contributor to GNOME's icon work for well over a decade. You'll be in great hands.
His service has a great freebie for FOSS projects — funded by community sponsors. You get three sketches to choose from, a final SVG, and a symbolic variant, all following the GNOME icon guidelines. If your project uses an OSI-approved license and is intended to be distributed through Flathub, you're eligible. Consider sponsoring his work if you can — even a small amount helps keep the pipeline going.
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This winter I was bored and needed something new, so I spent lots of my free time disassembling and analysing Monster World IV for the SEGA Mega Drive. More specifically, I looked at the 2008 Virtual Console revision of the game, which adds an English translation to the original 1994 release.
My long term goal would be to fully disassemble and analyse the game, port it to C or Rust as I do, and then port it to the Game Boy Advance. I don’t have a specific reason to do that, I just think it’s a charming game from a dated but charming series, and I think the Monaster World series would be a perfect fit on the Game Boy Advance. Since a long time, I also wanted to experiment with disassembling or decompiling code, understanding what doing so implies, understanding how retro computing systems work, and understanding the inner workings of a game I enjoy. Also, there is not publicly available disassembly of this game as far as I know.
As Spring is coming, I sense my focus shifting to other projets, but I don’t want this work to be gone forever and for everyone, especially not for future me. Hence, I decided to publish what I have here, so I can come back to it later or so it can benefit someone else.
First, here is the Ghidra project archive. It’s the first time I used Ghidra and I’m certain I did plenty of things wrong, feedback is happily welcome! While I tried to rename things as my understanding of the code grew, it is still quite a mess of clashing name conventions, and I’m certain I got plenty of things wrong.
Then, here is the Rust-written data extractor. It documents how some systems work, both as code and actual documentation. It mainly extracts and documents graphics and their compression methods, glyphs and their compression methods, character encodings, and dialog scripts. Similarly, I’m not a Rust expert, I did my best but I’m certain there is area for improvement, and everything was constantly changing anyway.
There is more information that isn’t documented and is just floating in my head, such as how the entity system works, but I yet have to refine my understanding of it. Same goes for the optimimzations allowed by coding in assembly, such as using specific registers for commonly used arguments. Hopefully I will come back to this project and complete it, at least when it comes to disassembling and documenting the game’s code.
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