We are working on a fix for this. Might be a while. This crash only occurs in the latest macOS. Some haven't seen this because their config was already in Dark theme mode. Crash only happens when switching themes after SlickEdit is already running.
In the meantime you can follow these steps:
* For safety, close all files since the last step is easiest to just let SlickEdit crash.
* Edit your user.cfg.xml
* Look for or add a misc.options profile.
<misc.options n="misc.options" version="1">
...
</misc.options>
* add the following property setting:
<app_theme v="Dark"/>
* Save the file. When you are prompted to reload the options, Yes causes a crash. It's probably best to click Yes anyway because you want to make sure your new option settings take effect and aren't overridden when you exit.
* Start SlickEdit. Now you should see the Dark theme.
If you don't have an existing misc.options profile, here's what the settings would look like:
File: user.cfg.xml
<options>
<misc.options n="misc.options" version="1">
<app_theme v="Dark"/>
</misc.options>
...
</options>
