[Rendering] people-picker in teams adaptive card has white back ground

Target Platforms

UWP

SDK Version

None

Application Name

Microsoft Teams web client

Problem Description

In teams adaptive card, people picker element's background turns from grey to white recently, which is hard to be recognized. There is no change in card template

Screenshots

Card JSON

{
  "type": "AdaptiveCard",
  "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
  "version": "1.4",
  "body": [
    {
      "type": "Input.ChoiceSet",
      "choices": [],
      "choices.data": {
        "type": "Data.Query",
        "dataset": "graph.microsoft.com/users"
      },
      "id": "userIds",
      "isMultiSelect": true,
      "isRequired": true,
      "errorMessage": "error"
    }
  ]
}

Sample Code Language

No response

Sample Code