The control object returned by GeoLeaf._LayerManagerControl.create().
Declared here rather than in control.ts so that layer-manager-api.ts can
name it without importing the control module — control.ts sits on a chain
that loops back through theme-applier, and that import would close a cycle.
The control object returned by
GeoLeaf._LayerManagerControl.create().Declared here rather than in
control.tsso thatlayer-manager-api.tscan name it without importing the control module —control.tssits on a chain that loops back throughtheme-applier, and that import would close a cycle.