Is it possible to configure the color of the read-only entry-fields?

With isCOBOL it is possible to set a different default color for the read-only entry-fields through the framework property:

iscobol.gui.entryfield.read_only_color=value
It can be set to a single value in order to specify a combined color or to two distinct values, separated by a comma, to define the background-color and the foreground color.
Negative values are considered RGB.
It is possible to append:
;1 the color specified by this property is applied only if the COLOR property was not used on the Entry-Field.
;0 the color specified by this property is always applied. This is the default behavior.
e.g.
iscobol.gui.entryfield.read_only_color=-7446992,-1;1