imagemapper highlight no area

the option “highlight all area” is highlighting all areas at the same time so there is no problem on your site.
To have no highlight at all you should take a look at the js file. try to modify the fade time and highlight time to 0. It may work. i’ll take a look if you don’t find any working solution.

there is no reason to go edit the js file. Simply go to Image Map Areas and then click on Highlight styles. Select the first option in the row (looks like no fill). Then set the fill and stroke opacity to 0.

no code editing needed.