Highlite active inputs and mixies (#337). Take 2. (#361)

* Highlight active inputs and mixies (#337)

radio/src/gui/colorlcd/model_inputs.cpp

@@ -337,7 +337,7 @@ void CommonInputOrMixButton::drawFlightModes(BitmapBuffer *dc,
 void CommonInputOrMixButton::paint(BitmapBuffer * dc)
 {
   dc->drawSolidFilledRect(0, 0, width(), height(),
-                          /*hasFocus() ? FOCUS_BGCOLOR :*/ FIELD_BGCOLOR);
+                          isActive() ? HIGHLIGHT_COLOR : FIELD_BGCOLOR);
   paintBody(dc);
 
   if (!hasFocus())
@@ -397,6 +397,7 @@ class InputLineButton : public CommonInputOrMixButton
     if (line.flightModes) {
       drawFlightModes(dc, line.flightModes, textColor);
     }
+    
   }
 };