src/vs/workbench/contrib/terminal/browser/terminalService.ts/TerminalEditorStyle/_registerListeners
class TerminalEditorStyle:	private _registerListeners(): void {
		this._register(this._terminalService.onInstanceIconChanged(() => this.updateStyles()));
		this._register(this._terminalService.onInstanceColorChanged(() => this.updateStyles()));
		this._register(this._terminalService.onDidChangeInstances(() => this.updateStyles()));
	}