e0bbc67605
Decision (f) of the component contract, with a fix it needed and a check of decision (g) (Phase 3c). - Return empty modifiers for a scale constraint axis. The constraint of each axis of a child gives the modifiers that the parent's resize adds to the child; :scale has no method of its own and took the default, which returned an empty vector. Adding a vector to modifiers reads its :last-order as nil: JavaScript adds nil as 0, the JVM throws, so a child scaled on one axis and constrained on the other (scale and top, say) could not be resized on the JVM. The default now returns empty modifiers. geom-shapes-constraints-test checks the default is empty and adds to modifiers. - Keep the children of a transformed copy shape derived. Decision (f) of the component contract: transforming a copy shape touches that shape only; its children change as a consequence and stay untouched, and sync gives them their expected geometry, their main's placed against their parent and resized through their constraints. Touch. The placement step decided per shape whether a transform touched it by comparing it with its copy root, so the children of a resized root that stretched (scale, left and right) were touched (F10), a derived width or height always touched (F22), and a resize that scales the content touched the strokes, radii and the like of every child (F39). The editor now tells the placement step which shapes the user transformed (the keys of the modifiers given, or those the stored modifiers were set for); any other shape of the transform changes only as a consequence of theirs (a child through its constraints, a board that hugs them) and touches nothing. Sync. Sync placed every main shape by the offset between the roots only, so the children of a resized copy root that a resize leaves untouched (center) went back to their main's place at the next sync of the main (F10). Now, before it walks the children of a copy shape that keeps its own geometry, sync resizes, turns and moves the main shape's subtree to match it, its children following through their constraints and layouts, and walks those: each child gets that geometry unless it has its own. comp-expected-geometry-test: a copy root resized as the editor does places a child constrained left, right, center, scale and left-right, leaves it untouched and keeps it there through a sync; a resize that scales the content scales the child's stroke and touches only the root. The frontend golden master records, in cases AI and the touched child under a main rotation, the children the resize or rotation of a root no longer touches. - Check a copy child resize leaves its hug board untouched. Decision (g) of the component contract: the size of a board that hugs its content is the layout's, never an override. The layout reflow writes it as derived, and a transform touches only the shapes the user transformed (decision (f)), so a resize of a copy child that grows the board it sits in touches the child only. workspace-layout-owned-sizes-test pins it. Benchmark (lower quantile, ms; baseline / now / ratio); the machine was loaded, and the code before this change, run in between, gave the same spread (0.44 to 0.59): deepest-edit-through-three-levels 35.2 / 16.7 / 0.47 edit-through-a-chain-of-dependents 68.9 / 33.4 / 0.48 library-update-into-copies 83.1 / 40.3 / 0.49 main-edit-among-many-shapes 4.8 / 2.4 / 0.49 main-edit-into-10-copies 1.8 / 1.0 / 0.54 main-edit-into-100-copies 15.4 / 8.8 / 0.57 main-edit-into-1000-copies 153.1 / 92.7 / 0.61 variant-switch-into-copies 32.1 / 19.6 / 0.61 AI-assisted-by: claude-opus-5-5
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Penpot is the open-source design platform for teams that build digital products at scale.
Penpot’s key strength lies in giving you full ownership of your design infrastructure. Built on open source and designed for self-hosting, it puts teams in complete control of their design environment supporting strict compliance and governance requirements. Whether used in the browser or deployed on your own servers, Penpot works with open standards like SVG, CSS, HTML, and JSON.
Real-time collaboration strengthens this foundation, helping teams scale and bring design closer to the product through top-tier capabilities. Additionally, developers feel at home using Penpot, because design is expressed as code, enabling a direct translation and shipping products faster.
Best-in-class native Design Tokens provide a single source of truth between design and development. They ensure consistency, improve collaboration, and make it easier to manage complex design systems.
The MCP server takes it further by enabling multi-directional workflows between design and code. A powerful open API and plugin system makes the workspace programmable, enabling automation, AI-driven workflows, and integrations with the tools and systems you already use.
With CSS Grid and Flex Layout, teams can design responsive interfaces that behave like real code from the start.
Combined, these features turn Penpot into a full-stack design platform for building scalable design systems and fully integrated product development processes.
If your organization is scaling and needs extra support, we’re here to help. Talk to us
Table of contents
Why Penpot
Penpot connects design, code, and AI workflows through a code-based approach, making designs readable by developers and AI via the MCP server. This approach helps teams ship what’s actually designed and manage design systems at scale with powerful design tokens. As a self-hosted, open-source and real-time collaboration platform, Penpot offers full flexibility, security, and ownership without vendor lock-in. Learn more about why Penpot is the platform for your team.
Plugin system
Penpot plugins let you expand the platform's capabilities, give you the flexibility to integrate it with other apps, and design custom solutions.
Designed for developers
Penpot was built to serve both designers and developers and create a fluid design-code process. You have the choice to enjoy real-time collaboration or play "solo".
Inspect mode
Work with ready-to-use code and make your workflow easy and fast. The inspect tab gives instant access to SVG, CSS and HTML code.
Integrations
Penpot offers integration into the development toolchain, thanks to its support for webhooks and an API accessible through access tokens.
Building Design Systems: design tokens, components and variants
Penpot brings design systems to code-minded teams: a single source of truth with native Design Tokens, Components, and Variants for scalable, reusable, and consistent UI across projects and platforms.
Getting started
Penpot is the only design & prototype platform that is deployment agnostic. You can use it in our SAAS or deploy it anywhere.
Learn how to install it with Docker, Kubernetes, Elestio or other options on our website.
Penpot Enterprise
Penpot Enterprise is our paid plan for organizations that need to scale their design work across multiple teams with advanced governance, security, and administration. Manage teams and access from a centralized Admin Console, configure advanced permissions, and connect your identity provider through SSO. Available for cloud and self-hosted environments, it combines enterprise controls with Penpot’s open-source foundation and open standards.
Community
We love the Open Source software community. Contributing is our passion and if it’s yours too, participate and improve Penpot. All your designs, code and ideas are welcome!
Want to go a step further? Become a Penpot Ambassador and help grow the Penpot community in your region while contributing to a global, open design ecosystem.
If you need help or have any questions; if you’d like to share your experience using Penpot or get inspired; if you’d rather meet our community of developers and designers, join our Community!
Categories include:
- Ask the Community
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Code of Conduct
Anyone who contributes to Penpot, whether through code, in the community, or at an event, must adhere to the code of conduct and foster a positive and safe environment.
Contributing
Any contribution will make a difference to improve Penpot. How can you get involved?
Choose your way:
- Create and share Libraries & Templates that will be helpful for the community.
- Invite your team to join.
- Give this repo a star and follow us on Social Media: Mastodon, Youtube, Instagram, Linkedin, Peertube, X and BlueSky.
- Participate in the Community space by asking and answering questions; reacting to others’ articles; opening your own conversations and following along on decisions affecting the project.
- Report bugs with our easy guide for bugs hunting or GitHub issues.
- Become a translator.
- Give feedback: Email us.
- Contribute to Penpot's code: Watch this video by Alejandro Alonso, CIO and developer at Penpot, where he gives us a hands-on demo of how to use Penpot’s repository and make changes in both front and back end.
To find (almost) everything you need to know on how to contribute to Penpot, refer to the contributing guide.
Resources
You can ask and answer questions, have open-ended conversations, and follow along on decisions affecting the project.
✏️ Tutorials
🏘️ Architecture
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License
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
Copyright (c) KALEIDOS SUBSIDIARY SL
Penpot is a Kaleidos’ open source project