Atlassian connector widgets render with a white background in dark mode and are always expanded inline

What's Wrong?

Every tool call to the Atlassian (Jira) claude.ai connector renders an inline card
labelled "Widget from Atlassian <toolName>" in the Claude Code desktop app. Two
independent problems with it:

1. The card ignores the app theme. It is drawn with a white/near-white background

and light grey text, inside a dark-themed UI. The contrast is poor, the text is hard
to read, and the block is visually jarring against the rest of the transcript.

1. The card is always expanded. It renders in full on every call, including when a

ticket is only referenced in passing. There is no way to get a one-line reference
that expands on click.

In one session with roughly eight Jira calls the transcript became difficult to read
back, because every call contributed another large, low-contrast block.

What Should Happen?

Either of these would resolve it, and both would be better:

• The widget follows the app's light/dark theme.
• The widget renders collapsed by default and expands on click, the way the ordinary

Used <server>: <tool> rows already behave.

A setting controlling inline MCP widget rendering would also be sufficient.

Steps to Reproduce

1. Use the Claude Code desktop app with a dark theme.
2. Enable the Atlassian claude.ai connector.
3. Ask Claude to do anything that calls a Jira tool, e.g. read an issue.
4. A "Widget from Atlassian getJiraIssue" card renders inline, white-on-dark and fully

expanded.

Additional context: no setting controls this

I looked for a way to turn the rendering off, and there does not appear to be one:

• ~/.claude/settings.json — nothing display-related
• project .claude/settings.json and settings.local.json — nothing
• the desktop app's own preferences — 26 keys covering browser tools, scheduled tasks,

sidebar mode and permissions; nothing about MCP widget display

mcp-user-tool-toggles.json can disable individual MCP tools, but that removes the tool
itself rather than its rendering.

Workaround

Disable the Atlassian connector entirely and configure the Atlassian MCP server directly
instead:

claude mcp add --scope user --transport http atlassian https://mcp.atlassian.com/v1/mcp

Same Jira site, same tools, and its results render as an ordinary collapsed tool row.

Worth noting: "disable the connector" is implemented by writing all 41 of the connector's
tool names into mcp-user-tool-toggles.json, rather than as a single connector-level
flag. A newly added connector tool would therefore not be covered by an existing toggle.

This is a poor workaround regardless, because it means giving up the connector in order
to control its presentation.

Claude Code Version

2.1.156

Is this a regression?

Unsure. The widgets appeared recently, but I do not have a specific last-working version
to cite.

Environment

• Claude Code desktop app (Code tab), version 2.1.156
• macOS (Darwin 25.6.0), Apple Silicon
• Theme: auto, resolving to dark