Sectors mode, rectangular selection: you can now hold Alt to select things inside of selected sectors.
Sector highlight is now shown when selecting sectors in Tag Explorer.
Error checks: added "Check unused textures" option.
Replaced MissingTexture3D and UnknownTexture3D.
Sectors mode: restored "Lower/Raise Floor/Ceiling by 8 mp" actions.
Visual mode: in some cases sidedefs were rendered as selected when they were not.
Existing linedefs were not split while drawing new lines in some cases.
Texture and height overrides were not applied correctly in some cases.
Preferences form: "Ctrl+Alt+ScrollUp" and "Ctrl+Alt+ScrollDown" dropdown items were setting the shortcut to "Ctrl+Shift+ScrollUp" and "Ctrl+Shift+ScrollDown".
Sectors mode: effect and tag overlay can now be toggled separately from selection numbers.
Sectors mode: "View Tags and Effects" and "View Selection Numbering" settings are now saved to program configuration.
Sectors mode: removed "Lower Floor by 8 mp", "Raise Floor by 8 mp", "Lower Ceiling by 8 mp" and "Raise Ceiling by 8 mp" actions.
"Increase Brightness by 8" and "Decrease Brightness by 8" actions now work in Sectors mode.
Moved "Increase Brightness by 8" and "Decrease Brightness by 8" actions to "Edit" category.
"Toggle Highlight" action now works in Sectors mode.
Moved "Toggle Highlight" action to "Tools" category.
Removed Brightness mode.
Updated documentation.
Added drawing modes to Mode menu, so they are much easier to spot now.
Warnings notify panel blinks much more noticeable when there are warnings.
UDMF Controls plugin:
3D-floor surfaces can be edited now.
Relative mode is now enabled by default.
Scale control now works properly in relative mode.
Angle control's angle indicator in now drawn properly when value is changed using numeric control.
