The Simple Image XML Sitemap plugin will generate a XML Sitemap for specifically for all images including images uploaded as Advanced Custom Fields (Plugin).
Adds a color scheme field type to Advanced Custon Fields Pro.
Create your own color schemes using hex and make them available from your
admin panel. You will need to know some PHP to be able to actually change
something using this, since this is just the front-end of the functionality,
but if you're looking for a controller this is for you.