Hard to read schemas from FastAPI

[songyang-dev]

Q&A (please complete the following information)

• OS: macOS
• Browser: safari
• Version: Version 26.2 (21623.1.14.11.9)
• Method of installation: FastAPI with Homebrew
• Swagger-UI version: ?
• Swagger/OpenAPI version: ?

Describe the bug you're encountering

I am coming from FastAPI, which uses Swagger UI. The generated docs is using grey text on a grey background. This is hard to read.

To reproduce...

Steps to reproduce the behavior:

1. Create a FastAPI project with the following endpoint.

# Imports and main execution
"""
from fastapi import FastAPI
app = FastAPI()
"""

class TagsResponse(BaseModel):
    """Response model for /api/tags endpoint."""

    models: list[str] = Field(description="List of available models")


@router.get("/api/tags", response_model=TagsResponse)
async def read_tags():
    """
    Fetch a list of models and their details.

    Returns a list of available models with their metadata.
    Complies with the Ollama API specification.
    """

    return TagsResponse(models=[])

3. Launch the project with fastapi dev and access the docs http://127.0.0.1:8000/docs.
4. Click Schemas

Expected behavior

The text should be on a clearer background.

Screenshots

Additional context or thoughts