Fixed, Classic modes: MODELDEF model scale was not taken into account when calculating model visibility, which resulted in models with increased scaled disappearing when near screen edges.
Changed, Linedef Edit window, Visual mode, UDMF: when "Edit windows remember selected tabs" setting is enabled and Front or Back tab was previously selected, the tab, which corresponds to the highlighted side will be selected.
Added: thing categories defined in Game Configurations can now be nested.
Changed, Thing Edit window: thing categories now use different icons.
Fixed: Thing Edit and Vertex edit windows had incorrect help links.
Fixed: Sound Propagation and Sound Environment modes had incorrect help links.
Documentation: updated "DECORATE keys" and "Things Settings" pages.
Visual mode, 3d floors: sloped 3d floors are now always rendered as opaque (just like in GZDoom).
Fixed a crash when creating a new unknown thing (introduced in r2324).
Documentation: updated "Action Argument Settings" and "DECORATE keys" pages.
DECORATE: added "//$ArgNEnum" special comment. It can be used to specify an enum to use with the argument.
Documentation: updated "Action Argument Settings" and "DECORATE keys" pages.
Game Configurations: updated things in ZDoom "Bridges" category to use argument types 23 and 24.
Documentation: added "Action Argument Settings" page, updated "Basic Settings", "Map Format Settings", "Linedefs Settings" and "Things Settings" pages in Configurations -> Game Configurations group.
Documentation: updated "DECORATE keys" page.
Sector Edit Form, UDMF: Sound Sequence selector is now a drop-down populated by values parsed from SNDSEQ.
Documentation: updated "(G)ZDoom text lumps support" page.
Updated udmf_zdoom.txt.
Fixed, Game Configurations window: current map is marked as changed when applying changes done in the window.
Changed, UDMF saving: removed extra line break between map elements.
Removed "Sectors Brightness Mode" action, because the mode itself was removed long ago...
Documentation: updated "DECORATE keys", "Things Settings" and "Linedefs Settings" pages.
Changed, Classic modes: increased maximum zoom level to 9000% (was 3000%).
Added, General interface: added "800%" zoom level to the bottom toolbar zoom menu.
Added, General interface: added "400%" and "800%" zoom levels to "View -> Zoom" menu.
Fixed, .obj Terrain Importer mode: the mode was unable to parse .obj vertex/face definitions generated by some (Cinema4D) modeling programs.
Changed, .obj Terrain Importer mode: vertical (e.g. perpendicular to up axis) polygons are now skipped during model importing.
Changed, Ceiling Align mode, Floor Align mode: changed rotation steps form 45 to 15 deg.
Game configurations, Strife, Doom map format: several thing flags were named incorrectly.
Game configurations, Strife, Doom map format: several linedef flags were listed as "Unknown".
Edit Selection mode: 15-degree rotation steps require more precision...
Changed, Things, Sectors, Linedefs, Vertices modes: we shouldn't select highlighted map element during the copy action when no map elements are selected.
Internal: removed some debug stuff from CheckTextureAlignment and ResultTexturesMisaligned.
