feat(ui): Change dialog background color to make buttons more visible (#2903)

* Change background colour of the ConfirmDialog box to make the buttons more visible.

* Change background colour of the ColorEditorPopup box to make the buttons more visible.

radio/src/gui/colorlcd/color_picker.cpp

@@ -66,6 +66,8 @@ class ColorEditorPopup : public Dialog
     Dialog(parent, std::string(), rect_t{}),
       _setValue(std::move(_setValue))
   {
+    lv_obj_set_style_bg_color(content->getLvObj(), makeLvColor(COLOR_THEME_SECONDARY3), 0);
+
     setCloseWhenClickOutside(true);
     auto form = &content->form;
 

radio/src/gui/colorlcd/confirm_dialog.cpp

@@ -34,6 +34,8 @@ ConfirmDialog::ConfirmDialog(Window* parent, const char* title,
   auto msg = new StaticText(form, rect_t{}, message);
   msg->padAll(lv_dpx(16));
 
+  lv_obj_set_style_bg_color(content->getLvObj(), makeLvColor(COLOR_THEME_SECONDARY3), 0);
+
   auto box = new FormGroup(form, rect_t{});
   box->setFlexLayout(LV_FLEX_FLOW_ROW);