# Add the second theme to components that only ever had one

Components that assume one theme, corrected so both render from the same tokens.

Category: Design system and UI
Source: https://letsship.ai/use-cases/add-the-second-theme-to-components
Published: 2026-08-25

## Goal

Make one component render correctly in both themes.

## Acceptance criteria

- Both themes are captured in the browser check
- Colours come from tokens rather than theme-specific overrides
- Contrast passes in both themes
- No colour is defined only inside a theme block

## What lands as proof

Captures of both themes, which is the only way to catch a colour that was defined for one and inherited by the other.

## Prompt

Copy this to an agent to open the ticket:

```text
Create a Linear issue in my team and assign it to the SHIP agent.

Title: Add {theme} support to {component}

Description: Make one component render correctly in both themes.

Acceptance criteria:
- Both themes are captured in the browser check
- Colours come from tokens rather than theme-specific overrides
- Contrast passes in both themes
- No colour is defined only inside a theme block

Before you create the issue, switch this repository's app to its secondary theme, find a component that breaks, and replace {component} and {theme}.
```

## Questions

### What does the agent actually change?

The ticket is scoped to one outcome: make one component render correctly in both themes. Work that serves that outcome is in scope, and anything outside it is left for a separate ticket, so the pull request stays reviewable.

### How do I know the work is done?

The pull request carries the evidence, not only the diff. Here that means both themes captured in the browser check, so a reviewer can confirm the result without reproducing the work locally.

### How much oversight does this need?

None is required before the run starts. Every claim this ticket makes can be checked by machine, so the agent works straight through and a person reviews the finished pull request like any other.