pcolor() default colors and grid not matching

[xarico10]

When using pcolor() to create a pseudocolor plot, default colors and grid isn't matching.

C = hadamard(20);
pcolor(C)


fig2plotly(gcf, 'offline', false);

Expected and generated (https://chart-studio.plotly.com/~xarico10/793/#/) plots:

The colors aren't the same, the grid isn't printed and the plot starts at (1,1) coordinate, when it should start at (0,0).

Examples on using pcolor() can be found on:
https://www.mathworks.com/help/matlab/ref/pcolor.html#responsive_offcanvas

[gilbertogalvis]

PR #342 fix this issue #264. This issue is related to pcolor similar to issues #263 and #265. Then working with this issue I was careful to ensure that modifications works for all this issues (#264, #263 and for #265)

to test it please use following code:

C = hadamard(20);
pcolor(C)

fig2plotly(gcf, 'offline', 1, 'TreatAs', 'pcolor');

results looks as follow