Two themes, and one place that decides what colour a station is

Colours came from static brushes scattered over the windows. They now come
from a Theme, and everything that paints a station, a spot or a log row
asks Themes.Current as it paints, so changing the theme changes every
window without reopening it.

light is N1MM's own palette, read out of ApplicationStyles: the pale blue
behind a window, ivory on a button, white boxes, and the four colours a
station is painted in. dark is the same states in colours for a dark
screen, which is roughly what the program looked like before.

Config > Manage Skins, Colors and Fonts picks one, under N1MM's name for
the same dialog, and shows what each theme paints a callsign. The choice
is kept in settings.json as Theme, and light is the default.

The window chrome follows through resources the Fluent controls read, so a
text box and a button take the theme's colours in every state. Fonts and
skins are not part of it.

Looked at under Xvfb in both themes: the entry window, the theme dialog,
and the log window with its rows still coloured by what each contact was
worth.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/Nonemm.App/Windows/EntryWindow.axaml

@@ -118,6 +118,7 @@
           <MenuItem Header="Change _SSB Function Key Definitions" Click="OnEditPhoneMessages" />
         </MenuItem>
         <MenuItem Header="Change Band Plan…" Click="OnSubBandSettings" />
+        <MenuItem Header="Manage Skins, Colors and Fonts…" Click="OnThemeSettings" />
         <MenuItem Header="Edit Networked-Computer Names…" Click="OnNetworkSettings" />
         <MenuItem Header="WAE">
           <MenuItem Header="Open QTC Window setup area" Click="OnQtcSetup" />