public void set_inner_border (Border? border)
Warning: set_inner_border is deprecated since 3.4.
Sets entry’s inner-border property to
border, or clears it if null
The inner-border is the area around the entry’s text, but inside its frame.
If set, this property overrides the inner-border style property. Overriding the style-provided border is useful when you want to do in-place editing of some text in a canvas or list widget, where pixel-exact positioning of the entry is important.
a Border, or null