WPF Property Filter
The WPF > Property Filter page of the properties selects which properties of WPF elements are shown for translation. The names are the property names in BAML, which in most cases are the XAML names.
The filter is a list of properties to hide. By default it hides technical properties: Name, TargetName, names ending in Category or AsString, Value, font properties, FlowDirection, and ContentSource. Text properties such as DisplayName stay visible. Translating font or layout values as text can make a window fail to load, for example after a pseudo-translation, so keep them hidden unless you need them.
After a change, run Scan for Changes.
See also WPF Localization.