MapSwitcher Thumbnails for Streets & Imagery

[DerekHunter]

I have enabled thumbnails per tag <showthumbnails>false</showthumbnails>, but need to determine where to reference the actual thumbnail image to use so it doe not use the defualt defaultBasemapIcon.png.. Any suggestion would be appreciated.

[RobertScheitlin__GISP]

It goes in the main config.xml as the icon property of each basemap layer:

<layer label="Streets" type="tiled" visible="true"
                    icon="assets/images/basemap_streets.jpg"
                    url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/> 

Don't forget to click the Mark as answer check on this post and to click the top arrow (promote).
Follow the steps as shown in the below graphic: