[Bug] When multiple Monaco editors exist simultaneously, the theme of each editor is forced to be unified

[AmamiyaCx]

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.47.0#XQAAAALRAgAAAAAAAABBqQkHQ5NjdQ_RJUhUwcsQIjjaoVayL-wYsMegjl4CeMe41v0rTlvQg_cBWS-b8aKgtqNV_EaBcxS_fzmS3coRB-IUAZyHk6adB6Fs2WGc2NlTO8dS2o-OecOzEBgerpUkIz_W1TLfpyf-wT0AH0ls9IOttAtxY9uWs7n9RY7yvoNkhFoczkjako1__1VsJA4Hbo-zC8JsKH90CD5mrl5KFd4lqQzQ63vMMnapr9wYbN3mM-N9cKSu9JagbHGR54bVOpVvbl1lxSY_14K9IPw-daMLHK3IhYVsNfIDyW4c46-J7i6PqF8CABVF5pMTdGNSAFAIjjG10MUHwMqdIXN1ofTW0HUXAWYEMfZH370HubTKX1QTwki4RYAS6A0rAlnCISY9fhoO55VVW8qQ5KdV2keowfzLZK1rPnSTO__jwwyDMKyxMBiq31b72zBY

Monaco Editor Playground Code

const value = /* set from `myEditor.getModel()`: */ `function hello() {
	alert('Hello world!');
}`;

// Hover on each property to see its docs!
const myEditor = monaco.editor.create(document.getElementById("container"), {
	value,
	theme: 'vs',
	language: "javascript",
	automaticLayout: true,
});

const value2 = /* set from `myEditor.getModel()`: */ `function hello() {
	alert('Hello world!');
}`;

// Hover on each property to see its docs!
const myEditor2 = monaco.editor.create(document.getElementById("container2"), {
	value,
	language: "javascript",
	theme: 'vs-dark',
	automaticLayout: true,
});

Reproduction Steps

1、Create an editor and set the theme to 'vs'
2、Create a second editor with the theme 'vs-dark'

Actual (Problematic) Behavior

The themes of the two Monaco editors are the same

Expected Behavior

Each Monaco editor should apply its own theme

Additional Context

No response

[Prinzhorn]

First search result #338