src/vs/workbench/services/themes/common/colorThemeData.ts/ColorThemeData/getTokenStyleMetadata
class ColorThemeData:	public getTokenStyleMetadata(typeWithLanguage: string, modifiers: string[], defaultLanguage: string, useDefault = true, definitions: TokenStyleDefinitions = {}): ITokenStyle | undefined {
		const { type, language } = parseClassifierString(typeWithLanguage, defaultLanguage);
		let style = this.getTokenStyle(type, modifiers, language, useDefault, definitions);
		if (!style) {
			return undefined;
		}

		return {
			foreground: this.getTokenColorIndex().get(style.foreground),
			bold: style.bold,
			underline: style.underline,
			strikethrough: style.strikethrough,
			italic: style.italic,
		};
	}