private static Dictionary<Tuple<int, int>, Dictionary<int, Color>> colourCache

Private Shared colourCache As Dictionary(Of Tuple(Of Integer, Integer), Dictionary(Of Integer, Color))

private:
static Dictionary<Tuple<int, int>^, Dictionary<int, Color>^>^ colourCache

static val mutable private colourCache: Dictionary<Tuple<int, int>, Dictionary<int, Color>>