Couple of fixes in phrases

src/libslic3r/Config.cpp

@@ -376,6 +376,9 @@ std::ostream& ConfigDef::print_cli_help(std::ostream& out, bool show_defaults, s
         return wrapped.str();
     };
 
+    // List of opt_keys that should be hidden from the CLI help.
+    const std::vector<std::string> silent_options = { "webdev", "single_instance_on_url" };
+
     // get the unique categories
     std::set<std::string> categories;
     for (const auto& opt : this->options) {
@@ -396,6 +399,9 @@ std::ostream& ConfigDef::print_cli_help(std::ostream& out, bool show_defaults, s
 			if (def.category != category || def.cli == ConfigOptionDef::nocli || !filter(def))
                 continue;
 
+            if (std::find(silent_options.begin(), silent_options.end(), opt.second.opt_key) != silent_options.end())
+                continue;
+            
             // get all possible variations: --foo, --foobar, -f...
             std::vector<std::string> cli_args = def.cli_args(opt.first);
 			if (cli_args.empty())

src/libslic3r/PrintConfig.cpp

@@ -5665,8 +5665,8 @@ CLIMiscConfigDef::CLIMiscConfigDef()
                      "Overrides the \"single_instance\" configuration value from application preferences.");
 
     def = this->add("single_instance_on_url", coBool);
-    def->label = L("Single instance mode for prusaslicer url");
+    def->label = "Single instance mode for prusaslicer url"; // Not translated on purpose - for internal use only.
-    def->tooltip = L("Works as single_instance but only if prusaslicer url is present.");
+    def->tooltip = "Works as single_instance but only if prusaslicer url is present.";
 
     def = this->add("datadir", coString);
     def->label = L("Data directory");
@@ -5684,8 +5684,8 @@ CLIMiscConfigDef::CLIMiscConfigDef()
     def->min = 0;
 
     def = this->add("webdev", coBool);
-    def->label = L("Enable webdev tools");
+    def->label = "Enable webdev tools"; // Not translated on purpose - for internal use only.
-    def->tooltip = L("Enable webdev tools");
+    def->tooltip = "Enable webdev tools";
 
 #if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(SLIC3R_GUI)
     def = this->add("sw_renderer", coBool);

src/slic3r/GUI/DoubleSliderForLayers.cpp

@@ -1256,7 +1256,7 @@ std::string DSForLayers::get_tooltip(int tick/*=-1*/)
             tooltip += _u8L("There is an extruder change set to the same extruder.\n"
                            "This code won't be processed during G-code generation.");
         else if (conflict == ctNotPossibleToolChange)
-            tooltip += _u8L("There is an extruder change set to the not existing extruder.\n"
+            tooltip += _u8L("There is an extruder change set to a non-existing extruder.\n"
                            "This code won't be processed during G-code generation.");
         else if (conflict == ctRedundant)
             tooltip += _u8L("There is a color change for extruder that has not been used before.\n"

src/slic3r/GUI/PhysicalPrinterDialog.cpp

@@ -897,7 +897,10 @@ void PhysicalPrinterDialog::OnOK(wxEvent& event)
     if (opt->value == htPrusaConnect) {
         auto& sc = Utils::ServiceConfig::instance();
         if (printhost_win && printhost_win->GetValue() != GUI::from_u8(sc.connect_url())){
-            InfoDialog msg(this, _L("Warning"), GUI::format(_L("URL of Prusa Connect is different from %1%. Do you want to continue?"), sc.connect_url()), true, wxYES_NO);
+            InfoDialog msg(this, _L("Warning"),
+                           // TRN: The placeholder expands to https://connect.prusa3d.com. The warning shows when someone select PrusaConnect physical printer, but enters different URL.
+                           GUI::format(_L("URL of Prusa Connect is different from %1%. Do you want to continue?"),
+                           sc.connect_url()), true, wxYES_NO);
             if(msg.ShowModal() != wxID_YES){
                 printhost_win->SetValue(GUI::from_u8(Utils::ServiceConfig::instance().connect_url()));
                 return;

src/slic3r/GUI/Tab.cpp

@@ -2660,10 +2660,10 @@ void TabPrinter::build_fff()
                             for (size_t i = 1; i < nozzle_diameters.size(); ++i) {
                                 // if value is differs from first nozzle diameter value
                                 if (fabs(nozzle_diameters[i] - nozzle_diameters[0]) > EPSILON || high_flow_nozzles[i] != high_flow_nozzles[0]) {
-                                    const wxString msg_text = _(L("Single Extruder Multi Material is selected, \n"
+                                    const wxString msg_text = _(L("This is a single extruder multimaterial printer, \n"
-                                                                  "and all extruders must have the same diameter and 'High flow' state.\n"
+                                                                  "all extruders must have the same nozzle diameter and 'High flow' state.\n"
                                                                   "Do you want to change these values for all extruders to first extruder values?"));
-                                    MessageDialog dialog(parent(), msg_text, _(L("Nozzle settings mismatch")), wxICON_WARNING | wxYES_NO);
+                                    MessageDialog dialog(parent(), msg_text, _(L("Extruder settings do not match")), wxICON_WARNING | wxYES_NO);
 
                                     DynamicPrintConfig new_conf = *m_config;
                                     if (dialog.ShowModal() == wxID_YES) {
@@ -3198,7 +3198,7 @@ void TabPrinter::build_extruder_pages(size_t n_before_extruders)
                 {
                     const wxString msg_text = _L("This is a single extruder multimaterial printer, 'high_flow' state of all extruders "
                                                  "will be set to the new value. Do you want to proceed?");
-                    MessageDialog dialog(parent(), msg_text, _L("High flow"), wxICON_WARNING | wxYES_NO);
+                    MessageDialog dialog(parent(), msg_text, _L("Extruder settings do not match"), wxICON_WARNING | wxYES_NO);
 
                     DynamicPrintConfig new_conf = *m_config;
                     if (dialog.ShowModal() == wxID_YES) {