diff --git a/package-lock.json b/package-lock.json
index 4d94a501..b2c88292 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "wled",
-  "version": "0.14.0-b1.16",
+  "version": "0.14.0-b7.17",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "wled",
-      "version": "0.14.0-b1.16",
+      "version": "0.14.0-b7.17",
       "license": "ISC",
       "dependencies": {
         "clean-css": "^4.2.3",
diff --git a/package.json b/package.json
index 932bfaa9..80211316 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wled",
-  "version": "0.14.0-b1.16",
+  "version": "0.14.0-b7.17",
   "description": "Tools for WLED project",
   "main": "tools/cdata.js",
   "directories": {
diff --git a/platformio.ini b/platformio.ini
index 10822e36..2b1f709d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -661,7 +661,7 @@ build_flags_all =
   -D USERMOD_BH1750
   -D USERMOD_ANIMATED_STAIRCASE
   -D USERMOD_RTC ;; experimental
-  ; -D USERMOD_SENSORSTOMQTT  ;; experimental ewpwi causes error: fatal error: Adafruit_Sensor.h: No such file or directory
+  ; -D USERMOD_SENSORSTOMQTT  ;; experimental ewowi causes error: fatal error: Adafruit_Sensor.h: No such file or directory
   -D USERMOD_ANALOG_CLOCK
   -D USERMOD_MULTI_RELAY
   -D USERMOD_PIRSWITCH
@@ -672,6 +672,7 @@ build_flags_all =
   -D USERMOD_BME280
   -D USERMOD_DHT
   -D USERMOD_VL53L0X_GESTURES
+  -D WLED_ENABLE_PIXART
 
 lib_deps_all =
   claws/BH1750 @^1.2.0 ; used for USERMOD_BH1750
diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index c29207f6..cdaabb83 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -1964,41 +1964,41 @@ static const char _data_FX_MODE_PALETTE[] PROGMEM = "Palette@Cycle speed;;!;;c3=
 // feel of your fire: COOLING (used in step 1 above) (Speed = COOLING), and SPARKING (used
 // in step 3 above) (Effect Intensity = Sparking).
 uint16_t mode_fire_2012() {
-  uint16_t strips = SEGMENT.nrOfVStrips();
+  const uint16_t strips = SEGMENT.nrOfVStrips();
   if (!SEGENV.allocateData(strips * SEGLEN)) return mode_static(); //allocation failed
   byte* heat = SEGENV.data;
 
-  uint32_t it = strip.now >> 5; //div 32
+  const uint32_t it = strip.now >> 6; //div 64
 
   struct virtualStrip {
     static void runStrip(uint16_t stripNr, byte* heat, uint32_t it) {
 
+      const uint8_t ignition = max(3,SEGLEN/10);  // ignition area: 10% of segment length or minimum 3 pixels
+
+      // Step 1.  Cool down every cell a little
+      for (int i = 0; i < SEGLEN; i++) {
+        uint8_t cool = (it != SEGENV.step) ? random8((((20 + SEGMENT.speed/3) * 16) / SEGLEN)+2) : random(8);
+        uint8_t minTemp = 0;
+        if (i<ignition) {
+          minTemp = (ignition-i)/4 + 16;  // and should not become black
+        }
+        uint8_t temp = qsub8(heat[i], cool);
+        heat[i] = temp<minTemp ? minTemp : temp;
+      }
+
       if (it != SEGENV.step)
       {
-        uint8_t ignition = max(3,SEGLEN/10);  // ignition area: 10% of segment length or minimum 3 pixels
-
-        // Step 1.  Cool down every cell a little
-        for (int i = 0; i < SEGLEN; i++) {
-          uint8_t cool = random8((((20 + SEGMENT.speed/3) * 16) / SEGLEN)+2);
-          uint8_t minTemp = 0;
-          if (i<ignition) {
-            //cool /= (ignition-i)/3 + 1;     // ignition area cools slower
-            minTemp = (ignition-i)/4 + 16;  // and should not become black
-          }
-          uint8_t temp = qsub8(heat[i], cool);
-          heat[i] = temp<minTemp ? minTemp : temp;
-        }
-
         // Step 2.  Heat from each cell drifts 'up' and diffuses a little
         for (int k = SEGLEN -1; k > 1; k--) {
           heat[k] = (heat[k - 1] + (heat[k - 2]<<1) ) / 3;  // heat[k-2] multiplied by 2
         }
+      }
 
-        // Step 3.  Randomly ignite new 'sparks' of heat near the bottom
-        if (random8() <= SEGMENT.intensity) {
-          uint8_t y = random8(ignition);
-          heat[y] = qadd8(heat[y], random8(160,255));
-        }
+      // Step 3.  Randomly ignite new 'sparks' of heat near the bottom
+      if (random8() <= SEGMENT.intensity) {
+        uint8_t y = random8(ignition);
+        uint8_t boost = (32+SEGMENT.custom3*2) * (2*ignition-y) / (2*ignition);
+        heat[y] = qadd8(heat[y], random8(64+boost,128+boost));
       }
 
       // Step 4.  Map from heat cells to LED colors
@@ -2011,12 +2011,14 @@ uint16_t mode_fire_2012() {
   for (int stripNr=0; stripNr<strips; stripNr++)
     virtualStrip::runStrip(stripNr, &heat[stripNr * SEGLEN], it);
 
+  if (SEGMENT.is2D()) SEGMENT.blur(32);
+
   if (it != SEGENV.step)
     SEGENV.step = it;
 
   return FRAMETIME;
 }
-static const char _data_FX_MODE_FIRE_2012[] PROGMEM = "Fire 2012@Cooling,Spark rate;;!;1.5d;pal=0,sx=120,ix=64,m12=1"; // bars WLEDMM 1.5d, pal = 0
+static const char _data_FX_MODE_FIRE_2012[] PROGMEM = "Fire 2012@Cooling,Spark rate,,,Boost;;!;1.5d;pal=0,sx=120,ix=64,m12=1"; // bars WLEDMM 1.5d, pal = 0
 
 
 // ColorWavesWithPalettes by Mark Kriegsman: https://gist.github.com/kriegsman/8281905786e8b2632aeb
diff --git a/wled00/improv.cpp b/wled00/improv.cpp
index ec6c3468..1541f781 100644
--- a/wled00/improv.cpp
+++ b/wled00/improv.cpp
@@ -189,7 +189,7 @@ void sendImprovInfoResponse() {
   out[11] = 4; //Firmware len ("WLED")
   out[12] = 'W'; out[13] = 'L'; out[14] = 'E'; out[15] = 'D';
   uint8_t lengthSum = 17;
-  uint8_t vlen = sprintf_P(out+lengthSum,PSTR("0.14.0-b1.16/%i"),VERSION);
+  uint8_t vlen = sprintf_P(out+lengthSum,PSTR("0.14.0-b7.17/%i"),VERSION);
   out[16] = vlen; lengthSum += vlen;
   uint8_t hlen = 7;
   #ifdef ESP8266
diff --git a/wled00/wled.h b/wled00/wled.h
index 192a0332..ce5bea6d 100644
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -3,7 +3,7 @@
 /*
    Main sketch, global variable declarations
    @title WLED project sketch
-   @version 0.14.0-b1
+   @version 0.14.0-b2
    @author Christian Schwinne
  */