Change the timing nodes (images) sizes

src/MATLAB/+Performance/ClosureGraph.m

src/MATLAB/+Performance/GaussianFilterGraph.m

src/MATLAB/+Performance/HighPassFilterGraph.m

src/MATLAB/+Performance/MaxFilterGraph.m

src/MATLAB/+Performance/MeanFilterGraph.m

src/MATLAB/+Performance/MedianFilterGraph.m

src/MATLAB/+Performance/RunTiming.m

src/MATLAB/+Performance/StdFilterGraph.m