config: add default values for empty stylesets

When adding new style objects it is impossible to give them a default
color nor attributes without modifying each existing user styleset.
Also, if the user has an incomplete styleset, some parts of aerc will
have no style at all. These quirks are not nice from a user experience
point of view.

Before parsing the user styleset, initialize aerc style with basic
defaults. Reuse the exact same content than the actual "default"
styleset provided in /usr/share/aerc/stylesets. Comment all of the
default styleset to make it obvious that these are default values.

This has some implications:

* To reset these defaults, the user styleset must now start with these
  two lines:

    *.default = true
    *.normal = true

  If these two lines are not present, the default style will be kept and
  only changed if the user styleset explicitly sets them.

* Empty stylesets no longer produce weird results.

Signed-off-by: Robin Jarry <robin@jarry.cc>
Tested-by: Inwit <inwit@sindominio.net>

6 files changed, 36 insertions, 24 deletions

diff --git a/stylesets/blue b/stylesets/blue
index c598ef92..46e04b46 100644
--- a/stylesets/blue
+++ b/stylesets/blue
@@ -1,5 +1,8 @@
 # vim: ft=dosini
 
+*.default=true
+*.normal=true
+
 border.bg=#005f87
 title.bg=#005f87
 
diff --git a/stylesets/default b/stylesets/default
index f3ea2733..c0d6f909 100644
--- a/stylesets/default
+++ b/stylesets/default
@@ -6,36 +6,39 @@
 # the aerc-stylesets(7) manpage. Please read the manual before
 # modifying or creating a styleset.
 
-*.default=true
-*.selected.reverse=toggle
+# Uncomment these two lines to reset all attributes and start from scratch.
+#*.default=true
+#*.normal=true
 
-title.reverse=true
-header.bold=true
+#*.selected.reverse=toggle
+#
+#title.reverse=true
+#header.bold=true
 
-*error.bold=true
-error.fg=red
-warning.fg=yellow
-success.fg=green
+#*error.bold=true
+#error.fg=red
+#warning.fg=yellow
+#success.fg=green
 
-statusline*.default=true
-statusline_default.reverse=true
-statusline_error.fg=red
-statusline_error.reverse=true
-statusline_warning.fg=yellow
-statusline_warning.reverse=true
+#statusline*.default=true
+#statusline_default.reverse=true
+#statusline_error.fg=red
+#statusline_error.reverse=true
+#statusline_warning.fg=yellow
+#statusline_warning.reverse=true
 
-msglist_unread.bold=true
-msglist_deleted.fg=gray
-msglist_result.fg=green
-msglist_pill.reverse=true
+#msglist_unread.bold=true
+#msglist_deleted.fg=gray
+#msglist_result.fg=green
+#msglist_pill.reverse=true
 
-completion_pill.reverse=true
+#completion_pill.reverse=true
 
-tab.reverse=true
-border.reverse = true
+#tab.reverse=true
+#border.reverse = true
 
-selector_focused.reverse=true
-selector_chooser.bold=true
+#selector_focused.reverse=true
+#selector_chooser.bold=true
 
 #[viewer]
 #url.underline=true
diff --git a/stylesets/dracula b/stylesets/dracula
index 9e24f422..8b8788e9 100644
--- a/stylesets/dracula
+++ b/stylesets/dracula
@@ -1,3 +1,6 @@
+*.default=true
+*.normal=true
+
 #border.bg=#BD93F9
 title.bg=#BD93F9
 
diff --git a/stylesets/nord b/stylesets/nord
index f099a43f..e9c7e853 100644
--- a/stylesets/nord
+++ b/stylesets/nord
@@ -3,6 +3,7 @@
 #
 
 *.default=true
+*.normal=true
 
 title.reverse=true
 header.bold=true
diff --git a/stylesets/pink b/stylesets/pink
index 1f73d0f7..9fd8c213 100644
--- a/stylesets/pink
+++ b/stylesets/pink
@@ -1,6 +1,7 @@
 # vim: ft=dosini
 
-#de4e85
+*.default=true
+*.normal=true
 
 border.bg=#de4e85
 title.bg=#de4e85
diff --git a/stylesets/solarized b/stylesets/solarized
index 026c3755..dcd8606f 100644
--- a/stylesets/solarized
+++ b/stylesets/solarized
@@ -3,6 +3,7 @@
 #
 
 *.default=true
+*.normal=true
 *error.bold=true
 border.reverse=true
 completion_pill.reverse=true