diff --git a/papers/doc/3-pattern/effects.md b/papers/doc/3-pattern/effects.md
index 773d3037..f72be501 100644
--- a/papers/doc/3-pattern/effects.md
+++ b/papers/doc/3-pattern/effects.md
@@ -14,6 +14,15 @@ however, effects are continuous, which means you only need to type it once and t
   - maximum tremolo depth is -60 volume steps.
 - `08xy`: set panning. `x` is the left channel and `y` is the right one.
   - not all systems support this effect.
+- `80xx`: set panning (linear). this effect behaves more like other trackers:
+  - `00` is left.
+  - `80` is center.
+  - `FF` is right.
+  - not all systems support this effect.
+- `81xx`: set volume of left channel (from `00` to `FF`).
+  - not all systems support this effect.
+- `82xx`: set volume of right channel (from `00` to `FF`).
+  - not all systems support this effect.
 - `09xx`: set speed 1.
 - `0Axy`: volume slide.
   - if `x` is 0 then this is a slide down.
diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index a12ccbfe..21598442 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -49,7 +49,7 @@ enum DivDispatchCmds {
   DIV_CMD_GET_VOLMAX, // () -> volMax
   DIV_CMD_NOTE_PORTA, // (target, speed) -> 2 if target reached
   DIV_CMD_PITCH, // (pitch)
-  DIV_CMD_PANNING, // (pan)
+  DIV_CMD_PANNING, // (left, right)
   DIV_CMD_LEGATO, // (note)
   DIV_CMD_PRE_PORTA, // (inPorta, isPortaOrSlide)
   DIV_CMD_PRE_NOTE, // used in C64 (note)
diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index c42f5cc5..edd7dcc4 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -69,6 +69,12 @@ const char* DivEngine::getEffectDesc(unsigned char effect, int chan, bool notNul
       return "0Dxx: Jump to next pattern";
     case 0x0f:
       return "0Fxx: Set speed 2";
+    case 0x80:
+      return "80xx: Set panning (00: left; 80: center; FF: right)";
+    case 0x81:
+      return "81xx: Set panning (left channel)";
+    case 0x82:
+      return "82xx: Set panning (right channel)";
     case 0xc0: case 0xc1: case 0xc2: case 0xc3:
       return "Cxxx: Set tick rate (hz)";
     case 0xe0:
@@ -1052,6 +1058,10 @@ int DivEngine::convertPanSplitToLinear(unsigned int val, unsigned char bits, int
   return pan*range;
 }
 
+int DivEngine::convertPanSplitToLinearLR(unsigned char left, unsigned char right, int range) {
+  return convertPanSplitToLinear((left<<8)|right,8,range);
+}
+
 unsigned int DivEngine::convertPanLinearToSplit(int val, unsigned char bits, int range) {
   if (val<0) val=0;
   if (val>range) val=range;
diff --git a/src/engine/engine.h b/src/engine/engine.h
index 9f971d7a..e3a0f71c 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -84,7 +84,7 @@ struct DivChannelState {
   int delayOrder, delayRow, retrigSpeed, retrigTick;
   int vibratoDepth, vibratoRate, vibratoPos, vibratoDir, vibratoFine;
   int tremoloDepth, tremoloRate, tremoloPos;
-  unsigned char arp, arpStage, arpTicks;
+  unsigned char arp, arpStage, arpTicks, panL, panR;
   bool doNote, legato, portaStop, keyOn, keyOff, nowYouCanStop, stopOnOff;
   bool arpYield, delayLocked, inPorta, scheduledSlideReset, shorthandPorta, noteOnInhibit, resetArp;
 
@@ -119,6 +119,8 @@ struct DivChannelState {
     arp(0),
     arpStage(-1),
     arpTicks(1),
+    panL(255),
+    panR(255),
     doNote(false),
     legato(false),
     portaStop(false),
@@ -477,6 +479,7 @@ class DivEngine {
 
     // convert panning formats
     int convertPanSplitToLinear(unsigned int val, unsigned char bits, int range);
+    int convertPanSplitToLinearLR(unsigned char left, unsigned char right, int range);
     unsigned int convertPanLinearToSplit(int val, unsigned char bits, int range);
 
     // find song loop position
diff --git a/src/engine/platform/arcade.cpp b/src/engine/platform/arcade.cpp
index f993a400..11cff5e9 100644
--- a/src/engine/platform/arcade.cpp
+++ b/src/engine/platform/arcade.cpp
@@ -543,8 +543,8 @@ int DivPlatformArcade::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      chan[c.chan].chVolL=((c.value>>4)>0);
-      chan[c.chan].chVolR=((c.value&15)>0);
+      chan[c.chan].chVolL=(c.value>0);
+      chan[c.chan].chVolR=(c.value2>0);
       if (isMuted[c.chan]) {
         rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
       } else {
diff --git a/src/engine/platform/gb.cpp b/src/engine/platform/gb.cpp
index 0cfdb960..e55e703e 100644
--- a/src/engine/platform/gb.cpp
+++ b/src/engine/platform/gb.cpp
@@ -371,9 +371,11 @@ int DivPlatformGB::dispatch(DivCommand c) {
       break;
     case DIV_CMD_PANNING: {
       lastPan&=~(0x11<<c.chan);
-      if (c.value==0) c.value=0x11;
-      c.value=((c.value&15)>0)|(((c.value>>4)>0)<<4);
-      lastPan|=c.value<<c.chan;
+      int pan=0;
+      if (c.value>0) pan|=0x10;
+      if (c.value2>0) pan|=0x01;
+      if (pan==0) pan=0x11;
+      lastPan|=pan<<c.chan;
       rWrite(0x25,procMute());
       break;
     }
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 090379cf..98dce6cf 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -633,10 +633,10 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         chan[c.chan].pan=3;
       } else {
-        chan[c.chan].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        chan[c.chan].pan=(c.value2>0)|((c.value>0)<<1);
       }
       rWrite(chanOffs[c.chan]+ADDR_LRAF,(isMuted[c.chan]?0:(chan[c.chan].pan<<6))|(chan[c.chan].state.fms&7)|((chan[c.chan].state.ams&3)<<4));
       break;
diff --git a/src/engine/platform/genesisext.cpp b/src/engine/platform/genesisext.cpp
index e5d964e5..e67c353d 100644
--- a/src/engine/platform/genesisext.cpp
+++ b/src/engine/platform/genesisext.cpp
@@ -107,10 +107,10 @@ int DivPlatformGenesisExt::dispatch(DivCommand c) {
       opChan[ch].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         opChan[ch].pan=3;
       } else {
-        opChan[ch].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        opChan[ch].pan=(c.value2>0)|((c.value>0)<<1);
       }
       if (parent->song.sharedExtStat) {
         for (int i=0; i<4; i++) {
diff --git a/src/engine/platform/lynx.cpp b/src/engine/platform/lynx.cpp
index 9a1f4d3d..18a9b72f 100644
--- a/src/engine/platform/lynx.cpp
+++ b/src/engine/platform/lynx.cpp
@@ -259,7 +259,7 @@ int DivPlatformLynx::dispatch(DivCommand c) {
       }
       break;
     case DIV_CMD_PANNING:
-      chan[c.chan].pan=c.value;
+      chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
       WRITE_ATTEN(c.chan,chan[c.chan].pan);
       break;
     case DIV_CMD_GET_VOLUME:
diff --git a/src/engine/platform/opl.cpp b/src/engine/platform/opl.cpp
index c127ce77..3e385434 100644
--- a/src/engine/platform/opl.cpp
+++ b/src/engine/platform/opl.cpp
@@ -680,10 +680,10 @@ int DivPlatformOPL::dispatch(DivCommand c) {
       break;
     case DIV_CMD_PANNING: {
       if (oplType!=3) break;
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         chan[c.chan].pan=3;
       } else {
-        chan[c.chan].pan=(((c.value&15)>0)<<1)|((c.value>>4)>0);
+        chan[c.chan].pan=(c.value2>0)|((c.value>0)<<1);
       }
       int ops=(slots[3][c.chan]!=255 && chan[c.chan].state.ops==4 && oplType==3)?4:2;
       if (isMuted[c.chan]) {
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index b09263fc..a56732be 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -424,7 +424,7 @@ int DivPlatformPCE::dispatch(DivCommand c) {
       }
       break;
     case DIV_CMD_PANNING: {
-      chan[c.chan].pan=c.value;
+      chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
       chWrite(c.chan,0x05,isMuted[c.chan]?0:chan[c.chan].pan);
       break;
     }
diff --git a/src/engine/platform/qsound.cpp b/src/engine/platform/qsound.cpp
index 9dd34589..f3197f6b 100644
--- a/src/engine/platform/qsound.cpp
+++ b/src/engine/platform/qsound.cpp
@@ -441,7 +441,7 @@ int DivPlatformQSound::dispatch(DivCommand c) {
       return chan[c.chan].outVol;
       break;
     case DIV_CMD_PANNING:
-      chan[c.chan].panning=parent->convertPanSplitToLinear(c.value,4,32);
+      chan[c.chan].panning=parent->convertPanSplitToLinearLR(c.value,c.value2,32);
       immWrite(Q1_PAN+c.chan,chan[c.chan].panning+0x110+(chan[c.chan].surround?0:0x30));
       break;
     case DIV_CMD_QSOUND_ECHO_LEVEL:
diff --git a/src/engine/platform/saa.cpp b/src/engine/platform/saa.cpp
index 4d79d45b..a083355a 100644
--- a/src/engine/platform/saa.cpp
+++ b/src/engine/platform/saa.cpp
@@ -331,7 +331,7 @@ int DivPlatformSAA1099::dispatch(DivCommand c) {
       break;
     }
     case DIV_CMD_PANNING:
-      chan[c.chan].pan=c.value;
+      chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
       if (isMuted[c.chan]) {
         rWrite(c.chan,0);
       } else {
diff --git a/src/engine/platform/segapcm.cpp b/src/engine/platform/segapcm.cpp
index 9064fa09..eb506ff3 100644
--- a/src/engine/platform/segapcm.cpp
+++ b/src/engine/platform/segapcm.cpp
@@ -268,8 +268,8 @@ int DivPlatformSegaPCM::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      chan[c.chan].chVolL=(c.value>>4)|(((c.value>>4)>>1)<<4);
-      chan[c.chan].chVolR=(c.value&15)|(((c.value&15)>>1)<<4);
+      chan[c.chan].chVolL=c.value>>1;
+      chan[c.chan].chVolR=c.value2>>1;
       if (dumpWrites) {
         addWrite(0x10002+(c.chan<<3),chan[c.chan].chVolL);
         addWrite(0x10003+(c.chan<<3),chan[c.chan].chVolR);
diff --git a/src/engine/platform/su.cpp b/src/engine/platform/su.cpp
index 4733e5b2..3a6003cb 100644
--- a/src/engine/platform/su.cpp
+++ b/src/engine/platform/su.cpp
@@ -270,7 +270,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
       break;
     }
     case DIV_CMD_PANNING: {
-      chan[c.chan].pan=parent->convertPanSplitToLinear(c.value,4,254)-127;
+      chan[c.chan].pan=parent->convertPanSplitToLinearLR(c.value,c.value2,254)-127;
       chWrite(c.chan,0x03,chan[c.chan].pan);
       break;
     }
diff --git a/src/engine/platform/swan.cpp b/src/engine/platform/swan.cpp
index 14708292..9ac07f6e 100644
--- a/src/engine/platform/swan.cpp
+++ b/src/engine/platform/swan.cpp
@@ -412,7 +412,7 @@ int DivPlatformSwan::dispatch(DivCommand c) {
       }
       break;
     case DIV_CMD_PANNING: {
-      chan[c.chan].pan=c.value;
+      chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
       calcAndWriteOutVol(c.chan,chan[c.chan].std.vol.will?chan[c.chan].std.vol.val:15);
       break;
     }
diff --git a/src/engine/platform/tx81z.cpp b/src/engine/platform/tx81z.cpp
index 643b6ebc..d69dfc87 100644
--- a/src/engine/platform/tx81z.cpp
+++ b/src/engine/platform/tx81z.cpp
@@ -525,8 +525,8 @@ int DivPlatformTX81Z::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      chan[c.chan].chVolL=((c.value>>4)>0);
-      chan[c.chan].chVolR=((c.value&15)>0);
+      chan[c.chan].chVolL=(c.value>0);
+      chan[c.chan].chVolR=(c.value2>0);
       chan[c.chan].freqChanged=true;
       /*
       if (isMuted[c.chan]) {
diff --git a/src/engine/platform/vera.cpp b/src/engine/platform/vera.cpp
index 9b30abda..ccb819c9 100644
--- a/src/engine/platform/vera.cpp
+++ b/src/engine/platform/vera.cpp
@@ -345,8 +345,8 @@ int DivPlatformVERA::dispatch(DivCommand c) {
       break;
     case DIV_CMD_PANNING: {
       tmp=0;
-      tmp|=(c.value&0x10)?1:0;
-      tmp|=(c.value&0x01)?2:0;
+      tmp|=(c.value>0)?1:0;
+      tmp|=(c.value2>0)?2:0;
       chan[c.chan].pan=tmp&3;
       if (c.chan<16) {
         rWriteHi(c.chan,2,isMuted[c.chan]?0:chan[c.chan].pan);
diff --git a/src/engine/platform/x1_010.cpp b/src/engine/platform/x1_010.cpp
index 9d64adfa..42319a29 100644
--- a/src/engine/platform/x1_010.cpp
+++ b/src/engine/platform/x1_010.cpp
@@ -694,8 +694,9 @@ int DivPlatformX1_010::dispatch(DivCommand c) {
       break;
     case DIV_CMD_PANNING: {
       if (!stereo) break;
-      if (chan[c.chan].pan!=c.value) {
-        chan[c.chan].pan=c.value;
+      unsigned char newPan=(c.value&0xf0)|(c.value2>>4);
+      if (chan[c.chan].pan!=newPan) {
+        chan[c.chan].pan=newPan;
         if (!isMuted[c.chan]) {
           chan[c.chan].envChanged=true;
         }
diff --git a/src/engine/platform/ym2610.cpp b/src/engine/platform/ym2610.cpp
index 4fcd53d3..c4ae0ad8 100644
--- a/src/engine/platform/ym2610.cpp
+++ b/src/engine/platform/ym2610.cpp
@@ -839,10 +839,10 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         chan[c.chan].pan=3;
       } else {
-        chan[c.chan].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        chan[c.chan].pan=(c.value2>0)|((c.value>0)<<1);
       }
       if (c.chan>12) {
         immWrite(0x11,isMuted[c.chan]?0:(chan[c.chan].pan<<6));
diff --git a/src/engine/platform/ym2610b.cpp b/src/engine/platform/ym2610b.cpp
index 3ad47b17..12e32ef8 100644
--- a/src/engine/platform/ym2610b.cpp
+++ b/src/engine/platform/ym2610b.cpp
@@ -902,10 +902,10 @@ int DivPlatformYM2610B::dispatch(DivCommand c) {
       chan[c.chan].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         chan[c.chan].pan=3;
       } else {
-        chan[c.chan].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        chan[c.chan].pan=(c.value2>0)|((c.value>0)<<1);
       }
       if (c.chan>14) {
         immWrite(0x11,isMuted[c.chan]?0:(chan[c.chan].pan<<6));
diff --git a/src/engine/platform/ym2610bext.cpp b/src/engine/platform/ym2610bext.cpp
index e930934d..5eec24ec 100644
--- a/src/engine/platform/ym2610bext.cpp
+++ b/src/engine/platform/ym2610bext.cpp
@@ -99,10 +99,10 @@ int DivPlatformYM2610BExt::dispatch(DivCommand c) {
       opChan[ch].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         opChan[ch].pan=3;
       } else {
-        opChan[ch].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        opChan[ch].pan=(c.value2>0)|((c.value>0)<<1);
       }
       DivInstrument* ins=parent->getIns(opChan[ch].ins,DIV_INS_FM);
       if (parent->song.sharedExtStat) {
diff --git a/src/engine/platform/ym2610ext.cpp b/src/engine/platform/ym2610ext.cpp
index c4cb3d9c..6ae91106 100644
--- a/src/engine/platform/ym2610ext.cpp
+++ b/src/engine/platform/ym2610ext.cpp
@@ -99,10 +99,10 @@ int DivPlatformYM2610Ext::dispatch(DivCommand c) {
       opChan[ch].ins=c.value;
       break;
     case DIV_CMD_PANNING: {
-      if (c.value==0) {
+      if (c.value==0 && c.value2==0) {
         opChan[ch].pan=3;
       } else {
-        opChan[ch].pan=((c.value&15)>0)|(((c.value>>4)>0)<<1);
+        opChan[ch].pan=(c.value2>0)|((c.value>0)<<1);
       }
       DivInstrument* ins=parent->getIns(opChan[ch].ins,DIV_INS_FM);
       if (parent->song.sharedExtStat) {
diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index 29899f0d..cb4d663d 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -1025,6 +1025,7 @@ void DivEngine::processRow(int i, bool afterDelay) {
 
   short lastSlide=-1;
   bool calledPorta=false;
+  bool panChanged=false;
 
   // effects
   for (int j=0; j<song.pat[i].effectCols; j++) {
@@ -1053,8 +1054,25 @@ void DivEngine::processRow(int i, bool afterDelay) {
           changePos=effectVal;
         }
         break;
-      case 0x08: // panning
-        dispatchCmd(DivCommand(DIV_CMD_PANNING,i,effectVal));
+      case 0x08: // panning (split 4-bit)
+        chan[i].panL=(effectVal>>4)|(effectVal&0xf0);
+        chan[i].panR=(effectVal&15)|((effectVal&15)<<4);
+        panChanged=true;
+        break;
+      case 0x80: { // panning (linear)
+        unsigned short pan=convertPanLinearToSplit(effectVal,8,255);
+        chan[i].panL=pan>>8;
+        chan[i].panR=pan&0xff;
+        panChanged=true;
+        break;
+      }
+      case 0x81: // panning left (split 8-bit)
+        chan[i].panL=effectVal;
+        panChanged=true;
+        break;
+      case 0x82: // panning right (split 8-bit)
+        chan[i].panR=effectVal;
+        panChanged=true;
         break;
       case 0x01: // ramp up
         if (song.ignoreDuplicateSlides && (lastSlide==0x01 || lastSlide==0x1337)) break;
@@ -1308,6 +1326,10 @@ void DivEngine::processRow(int i, bool afterDelay) {
     }
   }
 
+  if (panChanged) {
+    dispatchCmd(DivCommand(DIV_CMD_PANNING,i,chan[i].panL,chan[i].panR));
+  }
+
   if (insChanged && (chan[i].inPorta || calledPorta) && song.newInsTriggersInPorta) {
     dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,DIV_NOTE_NULL));
   }
diff --git a/src/gui/effectList.cpp b/src/gui/effectList.cpp
index c64966a4..032b87c3 100644
--- a/src/gui/effectList.cpp
+++ b/src/gui/effectList.cpp
@@ -32,27 +32,7 @@ void FurnaceGUI::drawEffectList() {
           ImGui::TableNextRow();
           ImGui::TableNextColumn();
           ImGui::PushFont(patFont);
-          if (i<0x10) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[i]]);
-            } else if (i<0x20) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-            } else if (i<0x30) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY]);
-            } else if (i<0x48) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-            } else if (i<0x90) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else if (i<0xa0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_MISC]);
-            } else if (i<0xc0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else if (i<0xd0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SPEED]);
-            } else if (i<0xe0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[extFxColors[i-0xe0]]);
-            }
+          ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[i]]);
           ImGui::Text("%c%c%c%c",name[0],name[1],name[2],name[3]);
           ImGui::PopStyleColor();
           ImGui::PopFont();
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 74a30354..ee94e8fe 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -2000,27 +2000,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
     } else {
       const unsigned char data=latchEffect;
       snprintf(id,63,"%.2x##LatchFX",data);
-      if (data<0x10) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[data]]);
-      } else if (data<0x20) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-      } else if (data<0x30) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY]);
-      } else if (data<0x48) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-      } else if (data<0x90) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-      } else if (data<0xa0) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_MISC]);
-      } else if (data<0xc0) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-      } else if (data<0xd0) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SPEED]);
-      } else if (data<0xe0) {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-      } else {
-        ImGui::PushStyleColor(ImGuiCol_Text,uiColors[extFxColors[data-0xe0]]);
-      }
+      ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[data]]);
     }
     
     if (ImGui::Selectable(id,latchTarget==3,ImGuiSelectableFlags_DontClosePopups)) {
diff --git a/src/gui/guiConst.cpp b/src/gui/guiConst.cpp
index 35786838..ec157a9e 100644
--- a/src/gui/guiConst.cpp
+++ b/src/gui/guiConst.cpp
@@ -142,7 +142,7 @@ const char* resampleStrats[]={
   "best possible"
 };
 
-const FurnaceGUIColors fxColors[16]={
+const FurnaceGUIColors fxColors[256]={
   GUI_COLOR_PATTERN_EFFECT_MISC, // 00
   GUI_COLOR_PATTERN_EFFECT_PITCH, // 01
   GUI_COLOR_PATTERN_EFFECT_PITCH, // 02
@@ -159,9 +159,242 @@ const FurnaceGUIColors fxColors[16]={
   GUI_COLOR_PATTERN_EFFECT_SONG, // 0D
   GUI_COLOR_PATTERN_EFFECT_INVALID, // 0E
   GUI_COLOR_PATTERN_EFFECT_SPEED, // 0F
-};
 
-const FurnaceGUIColors extFxColors[32]={
+  // 10-1F
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+
+  // 20-2F
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,
+
+  // 30-3F
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+
+  // 40-4F
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+
+  // 50-5F
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // 60-6F
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // 70-7F
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // 80-8F
+  GUI_COLOR_PATTERN_EFFECT_PANNING,
+  GUI_COLOR_PATTERN_EFFECT_PANNING,
+  GUI_COLOR_PATTERN_EFFECT_PANNING,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // 90-9F
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+  GUI_COLOR_PATTERN_EFFECT_MISC,
+
+  // A0-AF
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // B0-BF
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // C0-CF
+  GUI_COLOR_PATTERN_EFFECT_SPEED,
+  GUI_COLOR_PATTERN_EFFECT_SPEED,
+  GUI_COLOR_PATTERN_EFFECT_SPEED,
+  GUI_COLOR_PATTERN_EFFECT_SPEED,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // D0-DF
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_INVALID,
+
+  // E0-FF extended effects
   GUI_COLOR_PATTERN_EFFECT_MISC, // E0
   GUI_COLOR_PATTERN_EFFECT_PITCH, // E1
   GUI_COLOR_PATTERN_EFFECT_PITCH, // E2
@@ -193,7 +426,7 @@ const FurnaceGUIColors extFxColors[32]={
   GUI_COLOR_PATTERN_EFFECT_INVALID, // FC
   GUI_COLOR_PATTERN_EFFECT_INVALID, // FD
   GUI_COLOR_PATTERN_EFFECT_INVALID, // FE
-  GUI_COLOR_PATTERN_EFFECT_SONG, // FF
+  GUI_COLOR_PATTERN_EFFECT_SONG // FF
 };
 
 #define D FurnaceGUIActionDef
diff --git a/src/gui/guiConst.h b/src/gui/guiConst.h
index c0a8cd6c..69085c32 100644
--- a/src/gui/guiConst.h
+++ b/src/gui/guiConst.h
@@ -47,5 +47,4 @@ extern const FurnaceGUIActionDef guiActions[];
 extern const FurnaceGUIColorDef guiColors[];
 extern const int altValues[24];
 extern const int vgmVersions[6];
-extern const FurnaceGUIColors fxColors[16];
-extern const FurnaceGUIColors extFxColors[32];
\ No newline at end of file
+extern const FurnaceGUIColors fxColors[256];
\ No newline at end of file
diff --git a/src/gui/pattern.cpp b/src/gui/pattern.cpp
index 9ba22ef5..61fccb5a 100644
--- a/src/gui/pattern.cpp
+++ b/src/gui/pattern.cpp
@@ -235,27 +235,7 @@ inline void FurnaceGUI::patternRow(int i, bool isPlaying, float lineHeight, int
           } else {
             const unsigned char data=pat->data[i][index];
             sprintf(id,"%.2X##PE%d_%d_%d",data,k,i,j);
-            if (data<0x10) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[data]]);
-            } else if (data<0x20) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-            } else if (data<0x30) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY]);
-            } else if (data<0x48) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY]);
-            } else if (data<0x90) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else if (data<0xa0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_MISC]);
-            } else if (data<0xc0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else if (data<0xd0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_SPEED]);
-            } else if (data<0xe0) {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_PATTERN_EFFECT_INVALID]);
-            } else {
-              ImGui::PushStyleColor(ImGuiCol_Text,uiColors[extFxColors[data-0xe0]]);
-            }
+            ImGui::PushStyleColor(ImGuiCol_Text,uiColors[fxColors[data]]);
           }
         }
         ImGui::SameLine(0.0f,0.0f);
@@ -721,17 +701,14 @@ void FurnaceGUI::drawPattern() {
             break;
           }
           case DIV_CMD_PANNING: {
-            if (i.value==0) {
-              num=0;
-              break;
-            }
-            float ratio=float(((i.value>>4)&15)-(i.value&15))/MAX(((i.value>>4)&15),(i.value&15));
+            float ratio=(float)(128-e->convertPanSplitToLinearLR(i.value,i.value2,256))/128.0f;
+            logV("ratio %f",ratio);
             speedX=-22.0f*sin(ratio*M_PI*0.5);
             speedY=-22.0f*cos(ratio*M_PI*0.5);
             spread=5.0f+fabs(sin(ratio*M_PI*0.5))*7.0f;
             grav=0.0f;
             frict=0.96f;
-            if (((i.value>>4)&15)==(i.value&15)) {
+            if (i.value==i.value2) {
               partIcon=ICON_FA_ARROWS_H;
             } else if (ratio>0) {
               partIcon=ICON_FA_ARROW_LEFT;