REAPER for Mac

What's new in this version:

Localization:
- add option to show control IDs in debug tooltip, reduce debug tooltip delay
- prevent refresh of preferences help via holding alt+shift, allowing localization-tooltips to display
- support better expansion logic via auto_expand keyword on 5CA1E lines
- support for per-control scaling via 5CA1E lines, using the syntax =1 1 @ctl_id=scale ...
- support localizing 1/4, 1/8, etc via grid section
- support localizing 1/4, 1/8, etc in tempo beat basis via marker section

ReaScript:
- add spectral edit API via SetMediaItemTakeInfo_Value(), etc
- preserve existing tempo beat basis when calling SetTempoTimeSigMarker()
- SetObjState(item) runs synchronously if not recording
- update Main_SaveProjectEx() to allow updating project filename

ARA:
- inform plugin of selected region change when editing media item edge changes the number of loop iterations
- support disabling ARA for specific plugins (right-click plugin in FX Add list, does not affect plugins that are already loaded)

Automation:
- improve drawing performance when updating a single envelope
- optimize FX automation undo/redo, fix related bugs

Color theme:
- add folder_start
- support theme images for transport tempo basis

Record input menu:
- fix setting MIDI inputs sequentially by device
- improve MIDI device/channel selection, sequential mapping modes

Tempo/time signature:
- add actions to switch timebase (time/beats)
- fix action to apply playrate to tempo when tempo beat basis is not 1/4
- ignore mixed timebase when editing tempo marker, adjusting previous tempo

VST:
- improve VST2 to VST3 migration compatibility, including moduleinfo.json and IPluginCompatibility
- perform fast metadata-only scanning for plug-ins that define their classes via moduleinfo.json
- also look for xyz.vst3-moduleinfo.json, nonstandard but useful on Windows

Crossfades:
- fix grouped crossfades going out of sync when edit reaches the end of the media item

Filenames:
- add preference for suffix format to use when auto-incrementing filenames

FX:
- add option in Preferences/Audio to auto-bypass plug-ins whose PDC exceeds a threshold when record-armed

JSFX:
- tweak various plug-ins to look better when embedded in TCP/mixer on retina displays

Linux:
- allow using JACK with ALSA-MIDI devices by configuring JACK with 0 MIDI inputs/outputs

macOS:
- fix unintended clearing of menu item modifiers in various menus

Meters:
- avoid potentially displaying track meters in the wrong location for tracks that are slightly offscreen

MIDI:
- avoid note-off/retriggers when SetObjState(item) is called with trivial changes (fixes playback glitches with various scripts and SWS MIDI editor actions)

MIDI editor:
- fix possible crash when opening editor

Project load:
- hide any FX UIs when displaying project-load warnings to ensure that warning window is visible

Razor edits:
- improve behavior when pasting razor edits into a fixed lane track

RS5k:
- fix incorrect sample length when note-off occurs in same audio block as note-on

Track/Region/Group Manager:
- pressing enter key initiates editing the name field of the currently selected row

Transport:
- improve vertical centering of tempo beat basis display

Windows:
- reposition edit box when scrolling listview in Track Manager, Region Manager, Group Manager

API:
- fix offsets of MIDI events generated via StuffMIDIMessage() in VKB mode