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theme-system

theme-system is a skill for Claude Code from sampaio-tech/iOS-design-system. It costs 17 tokens per session (1,149 once invoked), scanned A, original, MIT.

A centralized styling system for an iOS design system, with shared colors, text styles, and automatic light and dark appearance support. A design system is a reusable set of rules and components for an app's interface.

In plain words
What is it for?
Use it when styling iOS-style screens, selecting system or semantic colors, applying text styles, and supporting light and dark modes.
Why use it?
It keeps screens visually consistent and lets colors and text adapt to the device's appearance setting.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

not rated 20repo 3mo ago A scan 17 tokens original MIT

Good fit Use it when styling iOS-style screens, selecting system or semantic colors, applying text styles, and supporting light and dark modes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sampaio-tech/ios-design-system/theme-system
View source ↗ sampaio-tech/iOS-design-system
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sampaio-tech/iOS-design-system --skill theme-system
Clone the repo
git clone --depth 1 https://github.com/sampaio-tech/iOS-design-system

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for theme-system

README.md
[![agentmods](https://agentmods.dev/badge/skills/sampaio-tech/ios-design-system/theme-system/github.svg)](https://agentmods.dev/skills/sampaio-tech/ios-design-system/theme-system)
Your own site
<a href="https://agentmods.dev/skills/sampaio-tech/ios-design-system/theme-system"><img src="https://agentmods.dev/badge/skills/sampaio-tech/ios-design-system/theme-system/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for theme-system

Your own site · 80×15
<a href="https://agentmods.dev/skills/sampaio-tech/ios-design-system/theme-system"><img src="https://agentmods.dev/badge/skills/sampaio-tech/ios-design-system/theme-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,149 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.01149
Opus 5.5 $0.00007 $0.00460
Sonnet 5.5 $0.00003 $0.00230
Haiku 4.5 $0.00002 $0.00115

Measured 2mo ago against content hash c53f93ac0296, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

theme-system scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/theme-system/SKILL.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Theme System Overview

This iOS Design System uses a centralized theme system with 8 color palettes, 22 typography styles, and automatic light/dark mode support.

Theme Access Pattern

Always access theme via context:

final theme = IosTheme.of(context);

Color Systems

1. System Colors (theme.defaultColors)

Standard iOS colors that adapt to brightness:

  • systemBlue, systemRed, systemGreen, systemYellow, systemOrange
  • systemPink, systemPurple, systemTeal, systemIndigo
  • systemGray01 through systemGray06
  • systemBlack, systemWhite

2. Label Colors (theme.defaultLabelColors)

Semantic text colors:

  • primary - Main text (100% opacity)
  • secondary - Secondary text (60% opacity)
  • tertiary - Disabled text (30% opacity)
  • quartenary - Placeholder (18% opacity)

3. Fill Colors (theme.defaultFillColors)

Background fills for UI elements:

  • primary, secondary, tertiary, quartenary
  • Auto-adapting opacity for light/dark

4. System Backgrounds (theme.defaultSystemBackgroundsColors)

Screen-level backgrounds:

  • primaryLight, primaryDarkBase, primaryDarkElevated
  • secondaryLight, secondaryDarkBase, secondaryDarkElevated
  • tertiaryLight, tertiaryDarkBase, tertiaryDarkElevated

5. Grouped Backgrounds (theme.defaultSystemGroupedBackgroundsColors)

For Settings-style grouped lists (same structure as System Backgrounds)

6. Separator Colors (theme.defaultSeparatorColors)

  • opaque - Prominent borders
  • nonOpaque - List dividers (default)

7. System Materials

Colors for blur effects:

  • systemMaterialsBackgroundsColors
  • systemMaterialsLabelsTextColors
  • systemMaterialsFillColors

8. App Decorations

Pre-built themes:

  • weatherDecorations - Weather app gradients
  • stocksDecorations - Stocks dark theme
  • neutralMusicDecorations - Apple Music theme
  • neutralPodcastDecorations - Podcast theme
  • appStoreDecorations - App Store theme
  • booksDecorations - Books theme

Read the full file on GitHub · 171 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 171 lines · 17 tokens per session scan A c53f93ac0296

Subscribe to this mod's changes

theme-system is a skill published in the GitHub repository sampaio-tech/iOS-design-system (20 stars, last pushed 3mo ago), licensed MIT. It adds 17 tokens to every session and 1,149 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

CSS and stylingDesign and UXFrontend
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