SkillAgentSearch skills...

Slice

An open-source, cross-platform GUI app to generate custom font design spaces from variable fonts

Install / Use

/learn @source-foundry/Slice
About this skill

Quality Score

0/100

Category

Design

Supported Platforms

Universal

README

<img height="36" src="https://raw.githubusercontent.com/source-foundry/Slice/main/src/resources/img/slice-icon.svg"/> Slice

An open-source application to create custom font design spaces from variable fonts

<img src="https://d33wubrfki0l68.cloudfront.net/faa7cb26d3ad28e0fced37690d416503081be711/10796/images/slice-hero-crunch.png">

About

Slice is an open-source, cross-platform GUI app that generates fonts with custom design sub-spaces from variable font inputs.

Install

Please see the Installation docs for additional details, including available package manager installation/upgrade approaches.

User documentation

User docs are available at https://slice-gui.netlify.app/docs/

Axis definitions

Slice currently supports combinations of the following axis definition types in output fonts:

  • Fixed instance locations
  • Level 3 restricted axis ranges (must include original axis default value in the new, smaller axis range)<sup>[1]</sup>
  • Full, original variable axis ranges

Define your font axes with the syntax in the table below.

|Axis definition | Axis Editor Syntax | Example | | --- | --- | --- | | Fixed axis location| Integer or float value | 400.0 | | Restricted axis range | Colon-delimited min:max integer or float range | 200:700 | | Full axis range | Leave editor row blank | n/a |

Issues

Please file issues on the project tracker.

Contributing

Source contributions are welcome. Please see the Slice application developer documentation for instructions on how to set up a local development environment and test your source changes. Submit a pull request with any changes that you would like to share upstream.

The Slice documentation is maintained in a separate GitHub repository. Please see the Slice documentation developer docs for additional details about how to modify documentation content and set up a local testing environment.

Contributions to this project are accepted under the licenses specified in the Licenses section below.

Licenses

The Slice project is licensed under the GNU General Public License version 3. Please see the LICENSE document for details.

Please see the thirdparty directory for additional details about third-party licenses.

Acknowledgments

❤️ Slice slices with the fantastic fonttools Python library.

❤️ Slice uses the wonderful Recursive (sliced with Slice!) and IBM Plex typefaces in the UI.

Slice docs are powered by Netlify (doc sources).

<a href="https://www.netlify.com"> <img src="https://www.netlify.com/img/global/badges/netlify-light.svg" alt="Deploys by Netlify" /> </a>

<small><a id="footnote1">1</a>: Default axis locations are required to compile valid variable font format files. The default axis value defined in the original font must be included in the restricted axis range due to the lack of compiler support for default axis location moves during the slicing process. We intend to support default axis location moves when it is possible to do so. This issue is being tracked on our GitHub tracker.</small>

Related Skills

clearshot

Structured screenshot analysis for UI implementation and critique. Analyzes every UI screenshot with a 5×5 spatial grid, full element inventory, and design system extraction — facts and taste together, every time. Escalates to full implementation blueprint when building. Trigger on any digital interface image file (png, jpg, gif, webp — websites, apps, dashboards, mockups, wireframes) or commands like 'analyse this screenshot,' 'rebuild this,' 'match this design,' 'clone this.' Skip for non-UI images (photos, memes, charts) unless the user explicitly wants to build a UI from them. Does NOT trigger on HTML source code, CSS, SVGs, or any code pasted as text.

openpencil

2.0k

The world's first open-source AI-native vector design tool and the first to feature concurrent Agent Teams. Design-as-Code. Turn prompts into UI directly on the live canvas. A modern alternative to Pencil.

ui-ux-designer

Use this agent when you need to design, implement, or improve user interface components and user experience flows. Examples include: creating new pages or components, improving existing UI layouts, implementing responsive designs, optimizing user interactions, building forms or dashboards, analyzing existing UI through browser snapshots, or when you need to ensure UI components follow design system standards and shadcn/ui best practices.\n\n<example>\nContext: User needs to create a new dashboard page for team management.\nuser: "I need to create a team management dashboard where users can view team members, invite new members, and manage roles"\nassistant: "I'll use the ui-ux-designer agent to design and implement this dashboard with proper UX considerations, using shadcn/ui components and our design system tokens."\n</example>\n\n<example>\nContext: User wants to improve the user experience of an existing form.\nuser: "The signup form feels clunky and users are dropping off. Can you improve it?"\nassistant: "Let me use the ui-ux-designer agent to analyze the current form UX and implement improvements using our design system and shadcn/ui components."\n</example>\n\n<example>\nContext: User wants to evaluate and improve existing UI.\nuser: "Can you take a look at our pricing page and see how we can make it more appealing and user-friendly?"\nassistant: "I'll use the ui-ux-designer agent to take a snapshot of the current pricing page, analyze the UX against Notion-inspired design principles, and implement improvements using our design tokens."\n</example>

HappyColorBlend

HappyColorBlendVibe Project Guidelines Project Overview HappyColorBlendVibe is a Figma plugin for color palette generation with advanced tint/shade blending capabilities. It allows designers to

View on GitHub
GitHub Stars196
CategoryDesign
Updated8d ago
Forks9

Languages

Python

Security Score

100/100

Audited on Mar 25, 2026

No findings