public Main()
{
InitializeComponent();
lastFocused = null;
scalingDict = new Dictionary <ToolStripMenuItem, GrayScaleMode>();
scalingDict[averageToolStripMenuItem] = GrayScaleMode.Average;
scalingDict[lumaToolStripMenuItem] = GrayScaleMode.Luma;
scalingDict[desaturationToolStripMenuItem] = GrayScaleMode.Desaturation;
scalingDict[decompositionMaxToolStripMenuItem] = GrayScaleMode.DecompositionMax;
scalingDict[decompositionMinToolStripMenuItem] = GrayScaleMode.DecompositionMin;
RgbButtons = new ToolStripMenuItem[3];
RgbButtons[0] = RedChannel;
RgbButtons[1] = GreenChannel;
RgbButtons[2] = BlueChannel;
}