All widgets (derivatives of UIElement) have a string ID. mixin this code to automatically set widgets ID. It generates _member.id = "_member"; for every field that is @ScriptExport, in order to find them from Wren.
mixin(fieldIdentifiersAreIDs!MyPluginGUI);
See Implementation
All widgets (derivatives of UIElement) have a string ID. mixin this code to automatically set widgets ID. It generates _member.id = "_member"; for every field that is @ScriptExport, in order to find them from Wren.