Settings dialog, per-program install defaults, Options after install; Update only when needed

README.md

@@ -42,10 +42,24 @@ HideWindowTitleBar = false
 
 Each program's own `~/.config/SaraSuite/<Program>/Config.toml` has the same three keys plus
 `UseSharedSettings` (default `true`). With it on, the program reads the shared file; with it
-off, it uses its own values instead. SaraFem edits both in its Settings (the SaraSuite tab
-for the shared file, the General tab for its own); for SaraSuite itself, edit its
-`Config.toml` directly. Whichever program starts first creates the shared file from its own
-values.
+off, it uses its own values instead. Both SaraSuite (the gear button, Shared and SaraSuite
+tabs) and SaraFem (its Settings, SaraSuite and General tabs) can edit them. Whichever program
+starts first creates the shared file from its own values.
+
+## SaraSuite's own settings
+
+The gear button also holds the git host and, in one tab per program, what that program's
+install dialog starts with: which option boxes are ticked and the default answers (e.g.
+SaraSortd's root folder). They're stored in `~/.config/SaraSuite/SaraSuite/Config.toml` as
+`[OptionDefaults.<Program>]` and `[AnswerDefaults.<Program>]`, and override the manifest's
+defaults.
+
+## Changing options after installing
+
+Installed programs with options (e.g. SaraFem's file picker) get an **Options** button. Turning
+an option off takes out what it placed and puts back any file it had replaced; turning it on
+places it. It reapplies the installed commit, so the program itself isn't updated. The
+**Update** button only shows up when there's an update (or a broken install to repair).
 
 ## Running and building
 
@@ -60,6 +74,8 @@ values.
   SaraSuite-x86_64.AppImage list
   SaraSuite-x86_64.AppImage install SaraSortd --set RootDir=~/Sorting --option Autostart=on
   SaraSuite-x86_64.AppImage update SaraSortd
+  SaraSuite-x86_64.AppImage options SaraFem                         # list them
+  SaraSuite-x86_64.AppImage options SaraFem --option FilePicker=off
   SaraSuite-x86_64.AppImage remove SaraSortd [--configs] [--keep-runtime]
   ```