[moserial] Fix color preference storage.

[Michael J. Chudobiak <mjc src gnome org>]

commit 06966ad9f5e7198096ecf4906a2e6166a6f5d126
Author: Mictronics <github mictronics de>
Date:   Sun Apr 26 18:57:45 2020 +0200

    Fix color preference storage.

 src/PreferencesDialog.vala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/PreferencesDialog.vala b/src/PreferencesDialog.vala
index be10a3b..c033440 100644
--- a/src/PreferencesDialog.vala
+++ b/src/PreferencesDialog.vala
@@ -80,11 +80,11 @@ public class moserial.PreferencesDialog : GLib.Object {
             pSystemFont = false;
         pFont = fontButton.get_font ();
         Gdk.RGBA c = Gdk.RGBA ();
-        c= fontColorButton.get_rgba();
+        c = fontColorButton.get_rgba();
         pFontColor = c.to_string ();
-        backgroundColorButton.get_rgba ();
+        c = backgroundColorButton.get_rgba ();
         pBackgroundColor = c.to_string ();
-        highlightColorButton.get_rgba ();
+        c = highlightColorButton.get_rgba ();
         pHighlightColor = c.to_string ();
         if (recordLaunch.get_active ())
             pRecordLaunch = true;