Object description not rendered correctly

Q	A
Bug or feature request?	Bug
Which Swagger/OpenAPI version?	3.0
Which Swagger-UI version?	Latest docker
How did you install Swagger-UI?	Docker
Which browser & version?	Chrome 62.0.3202.94
Which operating system?	macOS Sierra 10.12.6

Demonstration API definition

openapi: "3.0.0"
info:
  description: "Object Description Demo"
  version: "1.0.0"
  title: "Object Description Demo"
  termsOfService: ""
  contact:
    email: "author@example.com"
  license:
    name: "UNLICENSED"

servers:
  - url: "v1/"

paths:
 /foo:
  get:
    responses:
      204:
        description: OK
  

components:
  schemas:
    MyObject:
      description: Hello, world!
      type: object
      properties:
        foo:
          type: string
      

Configuration (browser query string, constructor, config.yaml)

N/A - Specifying json spec via docker env variable SWAGGER_JSON

Expected Behavior

Description should render without description: label in dark text instead of gray text like it does in other places such as:

It (probably?) also belongs outside of the object braces so that it does not disappear when the object is collapsed.

Current Behavior

Possible Solution

Context

Start by loading the supplied OpenAPI 3.0 schema in Swagger UI and inspect the frontend rendering path for object schema descriptions. Compare the displayed description with descriptions in other schema contexts and test the collapsed-object behavior. Done means the description uses the expected dark styling, omits the description: label, and remains visible when the object is collapsed.