Method Close

tests/Timeline.cpp:135–135

	std::string Name() override { return "TimelineSolidColorReader"; }
	void Open() override { is_open = true; }
	void Close() override { is_open = false; }

	std::shared_ptr<openshot::Frame> GetFrame(int64_t number) override {
		auto frame = std::make_shared<Frame>(number, info.width, info.height, "#00000000");