Text in annotations is longer when using colors. Bug?

Using annotations in matlab I noticed that when I use colored text the spacing between words increases. See the example below

Is this a know bug? Can it be fixed with some workaround?

annotation('textbox',[.2 .5 0 0],'String',["a a a a a a a a a a" "a a a a a a a a a a"],'FitBoxToText','on','FontName','consolas','FontSize',14)

annotation('textbox',[.2 .5 0 0],'String',["a a a a a a a a a a" "\color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a"],'FitBoxToText','on','FontName','consolas','FontSize',14)

[Adam Danz]

There does appear to be a difference in width of about 1 pixel or so that accumulates with every red letter. It can be seen when plotting your two examples on top of eachother.

[dpb]

Try various renderers to see if makes any difference.

Wonder if bold font would match up...

[giannit]

@AdamDanz The same happens also in the case we replace all \color{red} with \color{black}.

I don't think this is a wanted feature by developers, isn't it?

[giannit]

@dpb what do you mean with renderer? Interpreter? If so, we can only use 'tex'.

The same happens with bold

annotation('textbox',[.2 .5 0 0],'String',["\bfa a a a a a a a a a" "\color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a"],'FitBoxToText','on','FontName','consolas','FontSize',14)

[Adam Danz]

For render info

https://www.mathworks.com/help/matlab/creating_plots/resolving-low-level-graphics-issues.html#buwj00i-1

I tried painters but the problem persists. I doubt the offset is intentional.

[dpb]

I suspect it's all tied in to the font family and the TeX implementation. Probably not much could be done as AFAIK TMW just picked up an opensource TeX distribution and embedded the necessary pieces.