Hello, do you have any widget who can do grayscale from your basemap?
Thanks
Pavel,
I do not know of any widgets for this but if you add this to your apps css\jimu.css file then it will grayscale the basemap:
#map_defaultBasemap_0>div>img {
-webkit-filter: grayscale(1); /* Webkit */
filter: gray; /* IE6-9 */
filter: grayscale(1); /* W3C */
}