diff --git a/src/gui/editControls.cpp b/src/gui/editControls.cpp
index 68f0fee2d..5e8d72574 100644
--- a/src/gui/editControls.cpp
+++ b/src/gui/editControls.cpp
@@ -56,9 +56,11 @@ void FurnaceGUI::drawEditControls() {
           }
         }
 
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(e->isPlaying()));
         if (ImGui::Button(ICON_FA_PLAY "##Play")) {
           play();
         }
+        ImGui::PopStyleColor();
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_STOP "##Stop")) {
           stop();
@@ -95,9 +97,11 @@ void FurnaceGUI::drawEditControls() {
           stop();
         }
         ImGui::SameLine();
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(e->isPlaying()));
         if (ImGui::Button(ICON_FA_PLAY "##Play")) {
           play();
         }
+        ImGui::PopStyleColor();
         ImGui::SameLine();
         if (ImGui::Button(ICON_FA_ARROW_DOWN "##StepOne")) {
           e->stepOne(cursor.y);
@@ -105,14 +109,14 @@ void FurnaceGUI::drawEditControls() {
 
         ImGui::SameLine();
         bool repeatPattern=e->getRepeatPattern();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(repeatPattern)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(repeatPattern));
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern")) {
           e->setRepeatPattern(!repeatPattern);
         }
         ImGui::PopStyleColor();
 
         ImGui::SameLine();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(edit)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(edit));
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit")) {
           edit=!edit;
         }
@@ -120,7 +124,7 @@ void FurnaceGUI::drawEditControls() {
 
         ImGui::SameLine();
         bool metro=e->getMetronome();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(metro)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(metro));
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome")) {
           e->setMetronome(!metro);
         }
@@ -168,9 +172,11 @@ void FurnaceGUI::drawEditControls() {
       break;
     case 2: // compact vertical
       if (ImGui::Begin("Play/Edit Controls",&editControlsOpen,ImGuiWindowFlags_NoScrollbar|ImGuiWindowFlags_NoScrollWithMouse)) {
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(e->isPlaying()));
         if (ImGui::Button(ICON_FA_PLAY "##Play")) {
           play();
         }
+        ImGui::PopStyleColor();
         if (ImGui::Button(ICON_FA_STOP "##Stop")) {
           stop();
         }
@@ -179,20 +185,20 @@ void FurnaceGUI::drawEditControls() {
         }
 
         bool repeatPattern=e->getRepeatPattern();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(repeatPattern)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(repeatPattern));
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern")) {
           e->setRepeatPattern(!repeatPattern);
         }
         ImGui::PopStyleColor();
 
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(edit)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(edit));
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit")) {
           edit=!edit;
         }
         ImGui::PopStyleColor();
 
         bool metro=e->getMetronome();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(metro)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(metro));
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome")) {
           e->setMetronome(!metro);
         }
@@ -226,12 +232,12 @@ void FurnaceGUI::drawEditControls() {
         }
 
         ImGui::Text("Foll.");
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(followOrders)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(followOrders));
         if (ImGui::SmallButton("Ord##FollowOrders")) { handleUnimportant
           followOrders=!followOrders;
         }
         ImGui::PopStyleColor();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(followPattern)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(followPattern));
         if (ImGui::SmallButton("Pat##FollowPattern")) { handleUnimportant
           followPattern=!followPattern;
         }
@@ -243,9 +249,11 @@ void FurnaceGUI::drawEditControls() {
     case 3: // split
       if (ImGui::Begin("Play Controls",&editControlsOpen,ImGuiWindowFlags_NoScrollbar|ImGuiWindowFlags_NoScrollWithMouse)) {
         if (e->isPlaying()) {
+          ImGui::PushStyleColor(ImGuiCol_Button,uiColors[GUI_COLOR_TOGGLE_ON]);
           if (ImGui::Button(ICON_FA_STOP "##Stop")) {
             stop();
           }
+          ImGui::PopStyleColor();
         } else {
           if (ImGui::Button(ICON_FA_PLAY "##Play")) {
             play();
@@ -261,7 +269,7 @@ void FurnaceGUI::drawEditControls() {
         }
 
         ImGui::SameLine();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(edit)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(edit));
         if (ImGui::Button(ICON_FA_CIRCLE "##Edit")) {
           edit=!edit;
         }
@@ -269,7 +277,7 @@ void FurnaceGUI::drawEditControls() {
 
         bool metro=e->getMetronome();
         ImGui::SameLine();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(metro)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(metro));
         if (ImGui::Button(ICON_FA_BELL_O "##Metronome")) {
           e->setMetronome(!metro);
         }
@@ -277,7 +285,7 @@ void FurnaceGUI::drawEditControls() {
 
         ImGui::SameLine();
         bool repeatPattern=e->getRepeatPattern();
-        ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(repeatPattern)?0.6f:0.2f,0.2f,1.0f));
+        ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(repeatPattern));
         if (ImGui::Button(ICON_FA_REPEAT "##RepeatPattern")) {
           e->setRepeatPattern(!repeatPattern);
         }
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index ff0d4967e..3db50d06e 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -2848,7 +2848,9 @@ FurnaceGUI::FurnaceGUI():
   sampleFilterRes(0.25f),
   sampleFilterCutStart(16000.0f),
   sampleFilterCutEnd(100.0f),
-  sampleFilterPower(1) {
+  sampleFilterPower(1),
+  sampleClipboard(NULL),
+  sampleClipboardLen(0) {
   // value keys
   valueKeys[SDLK_0]=0;
   valueKeys[SDLK_1]=1;
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 7433750ea..58539ab10 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -41,6 +41,8 @@
 
 #define MARK_MODIFIED modified=true;
 
+#define TOGGLE_COLOR(x) ((x)?uiColors[GUI_COLOR_TOGGLE_ON]:uiColors[GUI_COLOR_TOGGLE_OFF])
+
 enum FurnaceGUIColors {
   GUI_COLOR_BACKGROUND=0,
   GUI_COLOR_FRAME_BACKGROUND,
@@ -49,6 +51,8 @@ enum FurnaceGUIColors {
   GUI_COLOR_TEXT,
   GUI_COLOR_ACCENT_PRIMARY,
   GUI_COLOR_ACCENT_SECONDARY,
+  GUI_COLOR_TOGGLE_OFF,
+  GUI_COLOR_TOGGLE_ON,
   GUI_COLOR_EDITING,
   GUI_COLOR_SONG_LOOP,
 
@@ -774,6 +778,8 @@ class FurnaceGUI {
   unsigned int sampleDragLen;
   float sampleFilterL, sampleFilterB, sampleFilterH, sampleFilterRes, sampleFilterCutStart, sampleFilterCutEnd;
   unsigned char sampleFilterPower;
+  void* sampleClipboard;
+  size_t sampleClipboardLen;
 
   // visualizer
   float keyHit[DIV_MAX_CHANS];
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index a1ba5f572..93b85a197 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -1370,25 +1370,25 @@ void FurnaceGUI::drawInsEdit() {
         if (ins->type==DIV_INS_C64) if (ImGui::BeginTabItem("C64")) {
           ImGui::Text("Waveform");
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.triOn)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.triOn));
           if (ImGui::Button("tri")) { PARAMETER
             ins->c64.triOn=!ins->c64.triOn;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.sawOn)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.sawOn));
           if (ImGui::Button("saw")) { PARAMETER
             ins->c64.sawOn=!ins->c64.sawOn;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.pulseOn)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.pulseOn));
           if (ImGui::Button("pulse")) { PARAMETER
             ins->c64.pulseOn=!ins->c64.pulseOn;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.noiseOn)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.noiseOn));
           if (ImGui::Button("noise")) { PARAMETER
             ins->c64.noiseOn=!ins->c64.noiseOn;
           }
@@ -1417,25 +1417,25 @@ void FurnaceGUI::drawInsEdit() {
 
           ImGui::Text("Filter Mode");
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.lp)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.lp));
           if (ImGui::Button("low")) { PARAMETER
             ins->c64.lp=!ins->c64.lp;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.bp)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.bp));
           if (ImGui::Button("band")) { PARAMETER
             ins->c64.bp=!ins->c64.bp;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.hp)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.hp));
           if (ImGui::Button("high")) { PARAMETER
             ins->c64.hp=!ins->c64.hp;
           }
           ImGui::PopStyleColor();
           ImGui::SameLine();
-          ImGui::PushStyleColor(ImGuiCol_Button,ImVec4(0.2f,(ins->c64.ch3off)?0.6f:0.2f,0.2f,1.0f));
+          ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(ins->c64.ch3off));
           if (ImGui::Button("ch3off")) { PARAMETER
             ins->c64.ch3off=!ins->c64.ch3off;
           }
diff --git a/src/gui/sampleEdit.cpp b/src/gui/sampleEdit.cpp
index 6b9694124..b33c1e802 100644
--- a/src/gui/sampleEdit.cpp
+++ b/src/gui/sampleEdit.cpp
@@ -137,16 +137,20 @@ void FurnaceGUI::drawSampleEdit() {
 
       ImGui::BeginDisabled(sample->depth!=8 && sample->depth!=16);
 
+      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(!sampleDragMode));
       if (ImGui::Button(ICON_FA_I_CURSOR "##SSelect")) {
         sampleDragMode=false;
       }
+      ImGui::PopStyleColor();
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Edit mode: Select");
       }
       ImGui::SameLine();
+      ImGui::PushStyleColor(ImGuiCol_Button,TOGGLE_COLOR(sampleDragMode));
       if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
         sampleDragMode=true;
       }
+      ImGui::PopStyleColor();
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Edit mode: Draw");
       }
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index 5348bfa06..b89ed593f 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -497,6 +497,8 @@ void FurnaceGUI::drawSettings() {
             UI_COLOR_CONFIG(GUI_COLOR_TEXT,"Text");
             UI_COLOR_CONFIG(GUI_COLOR_ACCENT_PRIMARY,"Primary");
             UI_COLOR_CONFIG(GUI_COLOR_ACCENT_SECONDARY,"Secondary");
+            UI_COLOR_CONFIG(GUI_COLOR_TOGGLE_ON,"Toggle on");
+            UI_COLOR_CONFIG(GUI_COLOR_TOGGLE_OFF,"Toggle off");
             UI_COLOR_CONFIG(GUI_COLOR_EDITING,"Editing");
             UI_COLOR_CONFIG(GUI_COLOR_SONG_LOOP,"Song loop");
             UI_COLOR_CONFIG(GUI_COLOR_PLAYBACK_STAT,"Playback status");
@@ -1199,6 +1201,8 @@ void FurnaceGUI::commitSettings() {
   PUT_UI_COLOR(GUI_COLOR_TEXT);
   PUT_UI_COLOR(GUI_COLOR_ACCENT_PRIMARY);
   PUT_UI_COLOR(GUI_COLOR_ACCENT_SECONDARY);
+  PUT_UI_COLOR(GUI_COLOR_TOGGLE_ON);
+  PUT_UI_COLOR(GUI_COLOR_TOGGLE_OFF);
   PUT_UI_COLOR(GUI_COLOR_EDITING);
   PUT_UI_COLOR(GUI_COLOR_SONG_LOOP);
   PUT_UI_COLOR(GUI_COLOR_VOLMETER_LOW);
@@ -1537,6 +1541,8 @@ void FurnaceGUI::applyUISettings() {
   GET_UI_COLOR(GUI_COLOR_TEXT,ImVec4(1.0f,1.0f,1.0f,1.0f));
   GET_UI_COLOR(GUI_COLOR_ACCENT_PRIMARY,ImVec4(0.06f,0.53f,0.98f,1.0f));
   GET_UI_COLOR(GUI_COLOR_ACCENT_SECONDARY,ImVec4(0.26f,0.59f,0.98f,1.0f));
+  GET_UI_COLOR(GUI_COLOR_TOGGLE_ON,ImVec4(0.2f,0.6f,0.2f,1.0f));
+  GET_UI_COLOR(GUI_COLOR_TOGGLE_OFF,ImVec4(0.2f,0.2f,0.2f,1.0f));
   GET_UI_COLOR(GUI_COLOR_EDITING,ImVec4(0.2f,0.1f,0.1f,1.0f));
   GET_UI_COLOR(GUI_COLOR_SONG_LOOP,ImVec4(0.3f,0.5f,0.8f,0.4f));
   GET_UI_COLOR(GUI_COLOR_VOLMETER_LOW,ImVec4(0.2f,0.6f,0.2f,1.0f));