diff --git a/wled00/cfg.cpp b/wled00/cfg.cpp
index 449182fe7..c528e0640 100644
--- a/wled00/cfg.cpp
+++ b/wled00/cfg.cpp
@@ -286,13 +286,22 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
     // new install/missing configuration (button 0 has defaults)
     if (fromFS) {
       // relies upon only being called once with fromFS == true, which is currently true.
-      uint8_t s = 0;
-      if (pinManager.allocatePin(btnPin[0], false, PinOwner::Button)) { // initialized to #define value BTNPIN, or zero if not defined(!)
-        ++s; // do not clear default button if allocated successfully
-      }
-      for (; s<WLED_MAX_BUTTONS; s++) {
-        btnPin[s]           = -1;
-        buttonType[s]       = BTN_TYPE_NONE;
+      for (size_t s = 0; s < WLED_MAX_BUTTONS; s++) {
+        if (buttonType[s] == BTN_TYPE_NONE || btnPin[s] < 0 || !pinManager.allocatePin(btnPin[s], false, PinOwner::Button)) {
+          btnPin[s]     = -1;
+          buttonType[s] = BTN_TYPE_NONE;
+        }
+        if (btnPin[s] >= 0) {
+          if (disablePullUp) {
+            pinMode(btnPin[s], INPUT);
+          } else {
+            #ifdef ESP32
+            pinMode(btnPin[s], buttonType[s]==BTN_TYPE_PUSH_ACT_HIGH ? INPUT_PULLDOWN : INPUT_PULLUP);
+            #else
+            pinMode(btnPin[s], INPUT_PULLUP);
+            #endif
+          }
+        }
         macroButton[s]      = 0;
         macroLongPress[s]   = 0;
         macroDoublePress[s] = 0;
@@ -302,6 +311,7 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
   CJSON(touchThreshold,btn_obj[F("tt")]);
   CJSON(buttonPublishMqtt,btn_obj["mqtt"]);
 
+  #ifndef WLED_DISABLE_INFRARED
   int hw_ir_pin = hw["ir"]["pin"] | -2; // 4
   if (hw_ir_pin > -2) {
     pinManager.deallocatePin(irPin, PinOwner::IR);
@@ -312,6 +322,7 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
     }
   }
   CJSON(irEnabled, hw["ir"]["type"]);
+  #endif
   CJSON(irApplyToAllSelected, hw["ir"]["sel"]);
 
   JsonObject relay = hw[F("relay")];
@@ -440,7 +451,7 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
   if (if_sync_send[F("twice")]) udpNumRetries = 1; // import setting from 0.13 and earlier
   CJSON(udpNumRetries, if_sync_send["ret"]);
 
-  JsonObject if_nodes = interfaces[F("nodes")];
+  JsonObject if_nodes = interfaces["nodes"];
   CJSON(nodeListEnabled, if_nodes[F("list")]);
   CJSON(nodeBroadcastEnabled, if_nodes[F("bcast")]);
 
@@ -629,7 +640,7 @@ void deserializeConfigFromFS() {
 
   DEBUG_PRINTLN(F("Reading settings from /cfg.json..."));
 
-  success = readObjectFromFile("/cfg.json", nullptr, pDoc);
+  success = readObjectFromFile(PSTR("/cfg.json"), nullptr, pDoc);
   if (!success) { // if file does not exist, optionally try reading from EEPROM and then save defaults to FS
     releaseJSONBufferLock();
     #ifdef WLED_ADD_EEPROM_SUPPORT
@@ -835,8 +846,10 @@ void serializeConfig() {
   hw_btn["mqtt"] = buttonPublishMqtt;
 
   JsonObject hw_ir = hw.createNestedObject("ir");
+  #ifndef WLED_DISABLE_INFRARED
   hw_ir["pin"] = irPin;
   hw_ir["type"] = irEnabled;  // the byte 'irEnabled' does contain the IR-Remote Type ( 0=disabled )
+  #endif
   hw_ir["sel"] = irApplyToAllSelected;
 
   JsonObject hw_relay = hw.createNestedObject(F("relay"));
@@ -913,7 +926,7 @@ void serializeConfig() {
   if_sync_send["grp"] = syncGroups;
   if_sync_send["ret"] = udpNumRetries;
 
-  JsonObject if_nodes = interfaces.createNestedObject(F("nodes"));
+  JsonObject if_nodes = interfaces.createNestedObject("nodes");
   if_nodes[F("list")] = nodeListEnabled;
   if_nodes[F("bcast")] = nodeBroadcastEnabled;
 
@@ -1149,7 +1162,7 @@ void serializeConfigSec() {
   ota[F("lock-wifi")] = wifiLock;
   ota[F("aota")] = aOtaEnabled;
 
-  File f = WLED_FS.open("/wsec.json", "w");
+  File f = WLED_FS.open(SET_F("/wsec.json"), "w");
   if (f) serializeJson(root, f);
   f.close();
   releaseJSONBufferLock();
diff --git a/wled00/const.h b/wled00/const.h
index 30a045319..dd965bc40 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -93,6 +93,11 @@
   #else
     #define WLED_MAX_BUTTONS 4
   #endif
+#else
+  #if WLED_MAX_BUTTONS < 2
+    #undef WLED_MAX_BUTTONS
+    #define WLED_MAX_BUTTONS 2
+  #endif
 #endif
 
 #ifdef ESP8266
diff --git a/wled00/fcn_declare.h b/wled00/fcn_declare.h
index 20ac21129..7e0d6f480 100644
--- a/wled00/fcn_declare.h
+++ b/wled00/fcn_declare.h
@@ -434,6 +434,7 @@ void handleSerial();
 void updateBaudRate(uint32_t rate);
 
 //wled_server.cpp
+String getFileContentType(String &filename);
 void createEditHandler(bool enable);
 void initServer();
 void serveMessage(AsyncWebServerRequest* request, uint16_t code, const String& headl, const String& subl="", byte optionT=255);
diff --git a/wled00/file.cpp b/wled00/file.cpp
index 57541dff6..37f794424 100644
--- a/wled00/file.cpp
+++ b/wled00/file.cpp
@@ -375,26 +375,6 @@ void updateFSInfo() {
   #endif
 }
 
-
-//Un-comment any file types you need
-static String getContentType(AsyncWebServerRequest* request, String filename){
-  if(request->hasArg(F("download")))     return SET_F("application/octet-stream");
-  else if(filename.endsWith(F(".htm")))  return SET_F("text/html");
-  else if(filename.endsWith(F(".html"))) return SET_F("text/html");
-  else if(filename.endsWith(F(".css")))  return SET_F("text/css");
-  else if(filename.endsWith(F(".js")))   return SET_F("application/javascript");
-  else if(filename.endsWith(F(".json"))) return SET_F("application/json");
-  else if(filename.endsWith(F(".png")))  return SET_F("image/png");
-  else if(filename.endsWith(F(".gif")))  return SET_F("image/gif");
-  else if(filename.endsWith(F(".jpg")))  return SET_F("image/jpeg");
-  else if(filename.endsWith(F(".ico")))  return SET_F("image/x-icon");
-//  else if(filename.endsWith(F(".xml")))   return SET_F("text/xml");
-//  else if(filename.endsWith(F(".pdf")))   return SET_F("application/x-pdf");
-//  else if(filename.endsWith(F(".zip")))   return SET_F("application/x-zip");
-//  else if(filename.endsWith(F(".gz")))    return SET_F("application/x-gzip");
-  return "text/plain";
-}
-
 #if defined(BOARD_HAS_PSRAM) && defined(WLED_USE_PSRAM)
 // caching presets in PSRAM may prevent occasional flashes seen when HomeAssitant polls WLED
 // original idea by @akaricchi (https://github.com/Akaricchi)
@@ -440,7 +420,8 @@ bool handleFileRead(AsyncWebServerRequest* request, String path){
   DEBUG_PRINT(F("WS FileRead: ")); DEBUG_PRINTLN(path);
   if(path.endsWith("/")) path += "index.htm";
   if(path.indexOf(F("sec")) > -1) return false;
-  String contentType = getContentType(request, path);
+  String contentType = getFileContentType(path);
+  if(request->hasArg(F("download"))) contentType = F("application/octet-stream");
   /*String pathWithGz = path + ".gz";
   if(WLED_FS.exists(pathWithGz)){
     request->send(WLED_FS, pathWithGz, contentType);
diff --git a/wled00/json.cpp b/wled00/json.cpp
index 7687a706d..b79da8d90 100644
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@@ -974,7 +974,7 @@ void serializeNetworks(JsonObject root)
 
 void serializeNodes(JsonObject root)
 {
-  JsonArray nodes = root.createNestedArray(F("nodes"));
+  JsonArray nodes = root.createNestedArray("nodes");
 
   for (NodesMap::iterator it = Nodes.begin(); it != Nodes.end(); ++it)
   {
@@ -1049,25 +1049,25 @@ void serveJson(AsyncWebServerRequest* request)
 {
   byte subJson = 0;
   const String& url = request->url();
-  if      (url.indexOf("state") > 0) subJson = JSON_PATH_STATE;
-  else if (url.indexOf("info")  > 0) subJson = JSON_PATH_INFO;
-  else if (url.indexOf("si")    > 0) subJson = JSON_PATH_STATE_INFO;
-  else if (url.indexOf("nodes") > 0) subJson = JSON_PATH_NODES;
-  else if (url.indexOf("eff")   > 0) subJson = JSON_PATH_EFFECTS;
-  else if (url.indexOf("palx")  > 0) subJson = JSON_PATH_PALETTES;
-  else if (url.indexOf("fxda")  > 0) subJson = JSON_PATH_FXDATA;
-  else if (url.indexOf("net")   > 0) subJson = JSON_PATH_NETWORKS;
+  if      (url.indexOf("state")    > 0) subJson = JSON_PATH_STATE;
+  else if (url.indexOf("info")     > 0) subJson = JSON_PATH_INFO;
+  else if (url.indexOf("si")       > 0) subJson = JSON_PATH_STATE_INFO;
+  else if (url.indexOf(F("nodes")) > 0) subJson = JSON_PATH_NODES;
+  else if (url.indexOf(F("eff"))   > 0) subJson = JSON_PATH_EFFECTS;
+  else if (url.indexOf(F("palx"))  > 0) subJson = JSON_PATH_PALETTES;
+  else if (url.indexOf(F("fxda"))  > 0) subJson = JSON_PATH_FXDATA;
+  else if (url.indexOf(F("net"))   > 0) subJson = JSON_PATH_NETWORKS;
   #ifdef WLED_ENABLE_JSONLIVE
-  else if (url.indexOf("live")  > 0) {
+  else if (url.indexOf("live")     > 0) {
     serveLiveLeds(request);
     return;
   }
   #endif
   else if (url.indexOf("pal") > 0) {
-    request->send_P(200, F("application/json"), JSON_palette_names);
+    request->send_P(200, "application/json", JSON_palette_names); // contentType defined in AsyncJson-v6.h
     return;
   }
-  else if (url.indexOf("cfg") > 0 && handleFileRead(request, F("/cfg.json"))) {
+  else if (url.indexOf(F("cfg")) > 0 && handleFileRead(request, F("/cfg.json"))) {
     return;
   }
   else if (url.length() > 6) { //not just /json
@@ -1184,7 +1184,7 @@ bool serveLiveLeds(AsyncWebServerRequest* request, uint32_t wsClient)
 #endif
   oappend("}");
   if (request) {
-    request->send(200, F("application/json"), buffer);
+    request->send(200, "application/json", buffer); // contentType defined in AsyncJson-v6.h
   }
   #ifdef WLED_ENABLE_WEBSOCKETS
   else {
diff --git a/wled00/remote.cpp b/wled00/remote.cpp
index 8f6650746..95f817a36 100644
--- a/wled00/remote.cpp
+++ b/wled00/remote.cpp
@@ -127,7 +127,7 @@ static bool remoteJson(int button)
   JsonObject fdo = pDoc->as<JsonObject>();
   if (fdo.isNull()) {
     // the received button does not exist
-    //if (!WLED_FS.exists("/remote.json")) errorFlag = ERR_FS_RMLOAD; //warn if file itself doesn't exist
+    //if (!WLED_FS.exists(SET_F("/remote.json"))) errorFlag = ERR_FS_RMLOAD; //warn if file itself doesn't exist
     releaseJSONBufferLock();
     return parsed;
   }
diff --git a/wled00/set.cpp b/wled00/set.cpp
index 7137e0cd8..489204b06 100755
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@@ -102,9 +102,11 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     if (rlyPin>=0 && pinManager.isPinAllocated(rlyPin, PinOwner::Relay)) {
        pinManager.deallocatePin(rlyPin, PinOwner::Relay);
     }
+    #ifndef WLED_DISABLE_INFRARED
     if (irPin>=0 && pinManager.isPinAllocated(irPin, PinOwner::IR)) {
        pinManager.deallocatePin(irPin, PinOwner::IR);
     }
+    #endif
     for (uint8_t s=0; s<WLED_MAX_BUTTONS; s++) {
       if (btnPin[s]>=0 && pinManager.isPinAllocated(btnPin[s], PinOwner::Button)) {
         pinManager.deallocatePin(btnPin[s], PinOwner::Button);
@@ -218,6 +220,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     BusManager::updateColorOrderMap(com);
 
     // update other pins
+    #ifndef WLED_DISABLE_INFRARED
     int hw_ir_pin = request->arg(F("IR")).toInt();
     if (pinManager.allocatePin(hw_ir_pin,false, PinOwner::IR)) {
       irPin = hw_ir_pin;
@@ -225,6 +228,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
       irPin = -1;
     }
     irEnabled = request->arg(F("IT")).toInt();
+    #endif
     irApplyToAllSelected = !request->hasArg(F("MSO"));
 
     int hw_rly_pin = request->arg(F("RL")).toInt();
diff --git a/wled00/util.cpp b/wled00/util.cpp
index 9e7d2eb46..fa6c8faff 100644
--- a/wled00/util.cpp
+++ b/wled00/util.cpp
@@ -539,13 +539,13 @@ um_data_t* simulateSound(uint8_t simulationId)
   return um_data;
 }
 
-
+static const char s_ledmap_tmpl[] PROGMEM = "ledmap%d.json";
 // enumerate all ledmapX.json files on FS and extract ledmap names if existing
 void enumerateLedmaps() {
   ledMaps = 1;
   for (size_t i=1; i<WLED_MAX_LEDMAPS; i++) {
-    char fileName[33];
-    sprintf_P(fileName, PSTR("/ledmap%d.json"), i);
+    char fileName[33] = "/";
+    sprintf_P(fileName+1, s_ledmap_tmpl, i);
     bool isFile = WLED_FS.exists(fileName);
 
     #ifndef ESP8266
@@ -574,7 +574,7 @@ void enumerateLedmaps() {
           }
           if (!ledmapNames[i-1]) {
             char tmp[33];
-            snprintf_P(tmp, 32, PSTR("ledmap%d.json"), i);
+            snprintf_P(tmp, 32, s_ledmap_tmpl, i);
             len = strlen(tmp);
             ledmapNames[i-1] = new char[len+1];
             if (ledmapNames[i-1]) strlcpy(ledmapNames[i-1], tmp, 33);
diff --git a/wled00/wled.cpp b/wled00/wled.cpp
index fc1b9f5ce..fc16dabcc 100644
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@@ -423,8 +423,6 @@ void WLED::setup()
 
   DEBUG_PRINT(F("heap ")); DEBUG_PRINTLN(ESP.getFreeHeap());
 
-  for (uint8_t i=1; i<WLED_MAX_BUTTONS; i++) btnPin[i] = -1;
-
   bool fsinit = false;
   DEBUGFS_PRINTLN(F("Mount FS"));
 #ifdef ARDUINO_ARCH_ESP32
diff --git a/wled00/wled.h b/wled00/wled.h
index 8d113d6e1..eb3c54d17 100755
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -271,9 +271,10 @@ WLED_GLOBAL char otaPass[33] _INIT(DEFAULT_OTA_PASS);
 
 // Hardware and pin config
 #ifndef BTNPIN
-WLED_GLOBAL int8_t btnPin[WLED_MAX_BUTTONS] _INIT({0});
-#else
-WLED_GLOBAL int8_t btnPin[WLED_MAX_BUTTONS] _INIT({BTNPIN});
+  #define BTNPIN 0,-1
+#endif
+#ifndef BTNTYPE
+  #define BTNTYPE BTN_TYPE_PUSH,BTN_TYPE_NONE
 #endif
 #ifndef RLYPIN
 WLED_GLOBAL int8_t rlyPin _INIT(-1);
@@ -287,9 +288,10 @@ WLED_GLOBAL bool rlyMde _INIT(true);
 WLED_GLOBAL bool rlyMde _INIT(RLYMDE);
 #endif
 #ifndef IRPIN
-WLED_GLOBAL int8_t irPin _INIT(-1);
-#else
-WLED_GLOBAL int8_t irPin _INIT(IRPIN);
+  #define IRPIN -1
+#endif
+#ifndef IRTYPE
+  #define IRTYPE 0
 #endif
 
 #if defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2) || (defined(RX) && defined(TX))
@@ -374,13 +376,11 @@ WLED_GLOBAL NodesMap Nodes;
 WLED_GLOBAL bool nodeListEnabled _INIT(true);
 WLED_GLOBAL bool nodeBroadcastEnabled _INIT(true);
 
-WLED_GLOBAL byte buttonType[WLED_MAX_BUTTONS]  _INIT({BTN_TYPE_PUSH});
-#if defined(IRTYPE) && defined(IRPIN)
+#ifndef WLED_DISABLE_INFRARED
+WLED_GLOBAL int8_t irPin        _INIT(IRPIN);
 WLED_GLOBAL byte irEnabled      _INIT(IRTYPE); // Infrared receiver
-#else
-WLED_GLOBAL byte irEnabled      _INIT(0);     // Infrared receiver disabled
 #endif
-WLED_GLOBAL bool irApplyToAllSelected _INIT(true); //apply IR to all selected segments
+WLED_GLOBAL bool irApplyToAllSelected _INIT(true); //apply IR or ESP-NOW to all selected segments
 
 WLED_GLOBAL uint16_t udpPort    _INIT(21324); // WLED notifier default port
 WLED_GLOBAL uint16_t udpPort2   _INIT(65506); // WLED notifier supplemental port
@@ -570,6 +570,8 @@ WLED_GLOBAL byte briLast             _INIT(128);           // brightness before
 WLED_GLOBAL byte whiteLast           _INIT(128);           // white channel before turned off. Used for toggle function in ir.cpp
 
 // button
+WLED_GLOBAL int8_t btnPin[WLED_MAX_BUTTONS]                   _INIT({BTNPIN});
+WLED_GLOBAL byte buttonType[WLED_MAX_BUTTONS]                 _INIT({BTNTYPE});
 WLED_GLOBAL bool buttonPublishMqtt                            _INIT(false);
 WLED_GLOBAL bool buttonPressedBefore[WLED_MAX_BUTTONS]        _INIT({false});
 WLED_GLOBAL bool buttonLongPressed[WLED_MAX_BUTTONS]          _INIT({false});
diff --git a/wled00/wled_server.cpp b/wled00/wled_server.cpp
index f4a3e2547..4ce113cb9 100644
--- a/wled00/wled_server.cpp
+++ b/wled00/wled_server.cpp
@@ -19,10 +19,35 @@ static const char s_unlock_cfg [] PROGMEM = "Please unlock settings using PIN co
 static const char s_notimplemented[] PROGMEM = "Not implemented";
 static const char s_accessdenied[]   PROGMEM = "Access Denied";
 static const char s_javascript[]     PROGMEM = "application/javascript";
-static const char s_json[]           PROGMEM = "application/json";
+static const char s_json[]                   = "application/json"; // AsyncJson-v6.h
 static const char s_html[]           PROGMEM = "text/html";
-static const char s_plain[]          PROGMEM = "text/plain";
+static const char s_plain[]                  = "text/plain"; // Espalexa.h
 static const char s_css[]            PROGMEM = "text/css";
+static const char s_png[]            PROGMEM = "image/png";
+static const char s_gif[]            PROGMEM = "image/gif";
+static const char s_jpg[]            PROGMEM = "image/jpeg";
+static const char s_ico[]            PROGMEM = "image/x-icon";
+//static const char s_xml[]            PROGMEM = "text/xml";
+//static const char s_pdf[]            PROGMEM = "application/x-pdf";
+//static const char s_zip[]            PROGMEM = "application/x-zip";
+//static const char s_gz[]             PROGMEM = "application/x-gzip";
+
+String getFileContentType(String &filename) {
+  if      (filename.endsWith(F(".htm")))  return FPSTR(s_html);
+  else if (filename.endsWith(F(".html"))) return FPSTR(s_html);
+  else if (filename.endsWith(F(".css")))  return FPSTR(s_css);
+  else if (filename.endsWith(F(".js")))   return FPSTR(s_javascript);
+  else if (filename.endsWith(F(".json"))) return       s_json;
+  else if (filename.endsWith(F(".png")))  return FPSTR(s_png);
+  else if (filename.endsWith(F(".gif")))  return FPSTR(s_gif);
+  else if (filename.endsWith(F(".jpg")))  return FPSTR(s_jpg);
+  else if (filename.endsWith(F(".ico")))  return FPSTR(s_ico);
+//  else if (filename.endsWith(F(".xml")))   return FPSTR(s_xml);
+//  else if (filename.endsWith(F(".pdf")))   return FPSTR(s_pdf);
+//  else if (filename.endsWith(F(".zip")))   return FPSTR(s_zip);
+//  else if (filename.endsWith(F(".gz")))    return FPSTR(s_gz);
+  return s_plain;
+}
 
 //Is this an IP?
 static bool isIp(String str) {
@@ -302,7 +327,7 @@ void initServer()
     if (root.containsKey("pin")) checkSettingsPIN(root["pin"].as<const char*>());
 
     const String& url = request->url();
-    isConfig = url.indexOf("cfg") > -1;
+    isConfig = url.indexOf(F("cfg")) > -1;
     if (!isConfig) {
       /*
       #ifdef WLED_DEBUG
@@ -331,7 +356,7 @@ void initServer()
         doSerializeConfig = true; //serializeConfig(); //Save new settings to FS
       }
     }
-    request->send(200, FPSTR(s_json), F("{\"success\":true}"));
+    request->send(200, s_json, F("{\"success\":true}"));
   }, JSON_BUFFER_SIZE);
   server.addHandler(handler);
 
@@ -505,7 +530,7 @@ void serveJsonError(AsyncWebServerRequest* request, uint16_t code, uint16_t erro
 {
     AsyncJsonResponse *response = new AsyncJsonResponse(64);
     if (error < ERR_NOT_IMPL) response->addHeader(F("Retry-After"), F("1"));
-    response->setContentType(FPSTR(s_json));
+    response->setContentType(s_json);
     response->setCode(code);
     JsonObject obj = response->getRoot();
     obj[F("error")] = error;