[gnome-tetravex/arnaudb/new-theme] Rename classes also.

[Arnaud B. <arnaudb src gnome org>]

commit 59dd9c2195ca4e3dc4b28c7ad598b1993a782a8c
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Wed Oct 9 00:34:10 2019 +0200

    Rename classes also.

 src/puzzle-view.vala     | 4 ++--
 src/theme-neoretro.vala  | 2 +-
 src/theme-nostalgia.vala | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/puzzle-view.vala b/src/puzzle-view.vala
index ceedb44..7a52cf2 100644
--- a/src/puzzle-view.vala
+++ b/src/puzzle-view.vala
@@ -104,9 +104,9 @@ private class PuzzleView : Gtk.DrawingArea
         internal set
         {
             if (value != "nostalgia") // including "value == neoretro"
-                { theme = new NewTheme (); if (tilesize != 0) theme.configure (tilesize); queue_draw (); 
return; }
+                { theme = new NeoRetroTheme ();  if (tilesize != 0) theme.configure (tilesize); queue_draw 
(); return; }
             else
-                { theme = new OldTheme (); if (tilesize != 0) theme.configure (tilesize); queue_draw (); 
return; }
+                { theme = new NostalgiaTheme (); if (tilesize != 0) theme.configure (tilesize); queue_draw 
(); return; }
         }
     }
 
diff --git a/src/theme-neoretro.vala b/src/theme-neoretro.vala
index 1e06490..b00bddf 100644
--- a/src/theme-neoretro.vala
+++ b/src/theme-neoretro.vala
@@ -9,7 +9,7 @@
  * license.
  */
 
-private class NewTheme : Theme
+private class NeoRetroTheme : Theme
 {
     /*\
     * * colors arrays
diff --git a/src/theme-nostalgia.vala b/src/theme-nostalgia.vala
index 5b1019a..d67c343 100644
--- a/src/theme-nostalgia.vala
+++ b/src/theme-nostalgia.vala
@@ -9,7 +9,7 @@
  * license.
  */
 
-private class OldTheme : Theme
+private class NostalgiaTheme : Theme
 {
     /*\
     * * colors arrays