ui: Select orange as background color during search

The setting was not defined, so we had white as foreground and
background, which made the selection hard to read.

Fixes: #1107

Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>

src/settings.cc

@@ -120,6 +120,9 @@ settings::settings() :
     SelectionBackground         (pattern(255, 255, 128).bits);
     SelectionForeground         (pattern( 24,  24, 128).bits);
 
+    SearchBackground            (pattern(255, 200, 120).bits);
+    SearchForeground            (pattern( 24,  24, 255).bits);
+
     ErrorBackground             (pattern(255, 240, 224).bits);
     ErrorForeground             (pattern( 64,   0,   0).bits);
     ErrorBorder                 (pattern(192,  64,  64).bits);