src/vs/editor/common/model/textModel.ts/ModelDecorationMinimapOptions/_resolveColor
class ModelDecorationMinimapOptions:	private _resolveColor(color: string | ThemeColor, theme: IColorTheme): Color | undefined {
		if (typeof color === 'string') {
			return Color.fromHex(color);
		}
		return theme.getColor(color.id);
	}