src/vs/workbench/contrib/notebook/browser/contrib/find/notebookFindReplaceWidget.ts/NotebookFindInput/applyStyles
class NotebookFindInput:	override applyStyles(): void {
		super.applyStyles();

		this._filterButtonContainer.style.borderColor = this._filterChecked && this.inputActiveOptionBorder ? this.inputActiveOptionBorder.toString() : '';
		this._filterButtonContainer.style.color = this._filterChecked && this.inputActiveOptionForeground ? this.inputActiveOptionForeground.toString() : 'inherit';
		this._filterButtonContainer.style.backgroundColor = this._filterChecked && this.inputActiveOptionBackground ? this.inputActiveOptionBackground.toString() : '';
	}