diff --git a/tools/imagecon/Makefile b/tools/imagecon/Makefile
index 6fd8355..c7ac7bb 100644
--- a/tools/imagecon/Makefile
+++ b/tools/imagecon/Makefile
@@ -2,70 +2,71 @@ PROGRAM=./out/imagecon
 OBJS=out/imagecon.o out/png.o out/color.o out/dither.o out/ham.o out/palette.o out/file.o out/sliced_ham.o out/quant.o out/utils.o
 LIBS=-lpng -limagequant
 
-# test stuff
-OUTPUT_BASE=out/mission-beach
-REFERENCE_BASE=reference/mission-beach
-TEST_IMAGE=../../assets/mission-beach.png
-BOB_IMAGE=../../assets/emoji.png
-SHARED_BASE=out/shared
-BOB_BASE=out/bob
-REFERENCE_BOB_BASE=reference/bob
-REFERENCE_SHARED_BASE=reference/shared
-REFERENCE_SHARED_PALETTE=$(REFERENCE_SHARED_BASE).pal
-SHARED_PALETTE=$(SHARED_BASE).pal
-USED_PALETTE=$(SHARED_BASE).bin $(SHARED_BASE)-copper-list.s
-
-EHB_IMAGE=../../assets/gigi.png
-EHB_BASE=out/ehb
-REFERENCE_EHB_BASE=reference/ehb
-
-HAM_IMAGE=../../assets/gigi.png
-HAM_BASE=out/ham
-REFERENCE_HAM_BASE=reference/ham
-
-DITHERED_HAM_IMAGE=../../assets/gigi.png
-DITHERED_HAM_BASE=out/dithered_ham
-REFERENCE_DITHERED_HAM_BASE=reference/dithered_ham
-
 include ../../shared/tools.mk
 
-$(USED_PALETTE): $(SHARED_PALETTE)
-	@echo "testing use-palette"
-	$(PROGRAM) --input $(TEST_IMAGE),$(BOB_IMAGE) --output $(SHARED_BASE) --use-palette $(SHARED_PALETTE) --output-bitplanes --output-copperlist
+# Simple 32 color quantize
+32COLOR_QUANT=32color-quant.png
+out/$(32COLOR_QUANT).bin: IMAGECON_ARGS=--output-copperlist --output-bitplanes --output-grey-palette --output-palette-asm --colors 32 --quantize --output-palette --output-png
 
-$(SHARED_PALETTE): $(PROGRAM)
-	-rm -f $(SHARED_PALETTE)
-	$(PROGRAM) --input $(TEST_IMAGE),$(BOB_IMAGE) --output $(SHARED_BASE) --colors 32 --quantize --output-palette
+# Using a previously generated palette
+USE_PALETTE=use_palette.png
+out/$(USE_PALETTE).bin: IMAGECON_ARGS=--output-bitplanes --output-palette-asm --use-palette out/$(32COLOR_QUANT).pal --output-palette --quantize
 
-$(OUTPUT_BASE).bin: $(PROGRAM) 
-	-rm -f $(OUTPUT_BASE).bin $(OUTPUT_BASE)-copper-list.s $(OUTPUT_BASE)-palette.s 
-	$(PROGRAM) --input $(TEST_IMAGE) --output $(OUTPUT_BASE) --output-copperlist --output-bitplanes --output-grey-palette --output-palette-asm --colors 32 --quantize
-	$(PROGRAM) --input $(BOB_IMAGE) --output $(BOB_BASE) --output-mask --colors 32 --quantize
+# Extra half brite mode
+EXTRA_HALF_BRITE=extra_half_brite.png
+out/$(EXTRA_HALF_BRITE).bin: IMAGECON_ARGS=--extra-half-brite --output-bitplanes --output-palette-asm  --output-palette --quantize --output-copperlist --colors=32 --quantize
 
-$(EHB_BASE).bin: $(EHB_IMAGE)
-	$(PROGRAM) --input $(EHB_IMAGE) --output $(EHB_BASE) --output-bitplanes --colors 32 --quantize --extra-half-brite --output-copperlist
+# HAM mode
+HAM_MODE=ham_mode.png
+out/$(HAM_MODE).bin: IMAGECON_ARGS=--output-bitplanes --ham --output-palette-asm
 
-$(HAM_BASE).bin: $(HAM_IMAGE)
-	$(PROGRAM) --input $(HAM_IMAGE) --output $(HAM_BASE) --output-bitplanes --ham --output-palette-asm
+# Dithered HAM mode
+DITHERED_HAM=dithered_ham.png
+out/$(DITHERED_HAM).bin: IMAGECON_ARGS=--dither --output-bitplanes --ham --output-palette-asm
 
-$(DITHERED_HAM_BASE).bin: $(DITHERED_HAM_IMAGE)
-	$(PROGRAM) --input $(DITHERED_HAM_IMAGE) --output $(DITHERED_HAM_BASE) --dither --output-bitplanes --ham --output-palette-asm
+# Laced dithered HAM mode
+LACE_MODE=lace.png
+out/$(LACE_MODE).bin: IMAGECON_ARGS=--dither --output-bitplanes --ham --output-palette-asm
 
-test: $(PROGRAM) $(OUTPUT_BASE).bin $(SHARED_PALETTE) $(USED_PALETTE) $(EHB_BASE).bin $(HAM_BASE).bin $(DITHERED_HAM_BASE).bin
-	diff $(OUTPUT_BASE).bin $(REFERENCE_BASE).bin	
-	diff $(OUTPUT_BASE)-copper-list.s $(REFERENCE_BASE)-copper-list.s
-	diff $(OUTPUT_BASE)-palette.s $(REFERENCE_BASE)-palette.s
-	diff $(OUTPUT_BASE)-grey.s $(REFERENCE_BASE)-grey.s
-	diff $(SHARED_PALETTE) $(REFERENCE_SHARED_PALETTE)
-	diff $(SHARED_BASE).bin $(REFERENCE_SHARED_BASE).bin	
-	diff $(SHARED_BASE)-copper-list.s $(REFERENCE_SHARED_BASE)-copper-list.s
-	diff $(BOB_BASE)-mask.bin $(REFERENCE_BOB_BASE)-mask.bin
-	diff $(EHB_BASE).bin $(REFERENCE_EHB_BASE).bin
-	diff $(EHB_BASE)-copper-list.s $(REFERENCE_EHB_BASE)-copper-list.s
-	diff $(HAM_BASE)-ham.bin $(REFERENCE_HAM_BASE)-ham.bin
-	diff $(HAM_BASE)-palette.s $(REFERENCE_HAM_BASE)-palette.s
-	diff $(DITHERED_HAM_BASE)-ham.bin $(REFERENCE_DITHERED_HAM_BASE)-ham.bin
-	diff $(DITHERED_HAM_BASE)-palette.s $(REFERENCE_DITHERED_HAM_BASE)-palette.s
+# Two images, sharing a palette
+SHARED_PALETTE=shared_palette.png
+
+
+# default recipe for converting images
+out/%.bin: test-images/% Makefile
+	$(PROGRAM) --input $< --output out/$* $(IMAGECON_ARGS)
+
+# special case for shared palette
+out/$(SHARED_PALETTE).bin: $(PROGRAM)
+	$(PROGRAM) --input test-images/$(32COLOR_QUANT),test-images/bob.png --output out/$(SHARED_PALETTE) --colors 32 --quantize --output-palette --output-bitplanes
+
+
+test: $(PROGRAM) out/$(32COLOR_QUANT).bin out/$(USE_PALETTE).bin out/$(SHARED_PALETTE).bin out/$(EXTRA_HALF_BRITE).bin out/$(HAM_MODE).bin out/$(DITHERED_HAM).bin out/$(LACE_MODE).bin
+	diff out/$(32COLOR_QUANT).bin reference/$(32COLOR_QUANT).bin
+	diff out/$(32COLOR_QUANT)-copper-list.s reference/$(32COLOR_QUANT)-copper-list.s
+	diff out/$(32COLOR_QUANT)-grey.s reference/$(32COLOR_QUANT)-grey.s
+	diff out/$(32COLOR_QUANT)-palette.s reference/$(32COLOR_QUANT)-palette.s
+	diff out/$(32COLOR_QUANT).pal reference/$(32COLOR_QUANT).pal
+	diff out/$(32COLOR_QUANT)-converted.png reference/$(32COLOR_QUANT)-converted.png
+
+	diff out/$(USE_PALETTE).bin reference/$(USE_PALETTE).bin
+
+	diff out/$(SHARED_PALETTE).bin reference/$(SHARED_PALETTE).bin
+	diff out/$(SHARED_PALETTE).pal reference/$(SHARED_PALETTE).pal
+
+	diff out/$(EXTRA_HALF_BRITE).bin reference/$(EXTRA_HALF_BRITE).bin
+	diff out/$(EXTRA_HALF_BRITE)-copper-list.s reference/$(EXTRA_HALF_BRITE)-copper-list.s
+	diff out/$(EXTRA_HALF_BRITE)-palette.s reference/$(EXTRA_HALF_BRITE)-palette.s
+	diff out/$(EXTRA_HALF_BRITE).pal reference/$(EXTRA_HALF_BRITE).pal
+
+	diff out/$(HAM_MODE)-ham.bin reference/$(HAM_MODE)-ham.bin
+	diff out/$(HAM_MODE)-palette.s reference/$(HAM_MODE)-palette.s
+
+	diff out/$(DITHERED_HAM)-ham.bin reference/$(DITHERED_HAM)-ham.bin
+	diff out/$(DITHERED_HAM)-palette.s reference/$(DITHERED_HAM)-palette.s
+
+	diff out/$(LACE_MODE)-ham.bin reference/$(LACE_MODE)-ham.bin
+	diff out/$(LACE_MODE)-palette.s reference/$(LACE_MODE)-palette.s
 
 	@echo "______  ___   _____ _____ ___________  "
 	@echo "| ___ \/ _ \ /  ___/  ___|  ___|  _  \ "
@@ -73,3 +74,4 @@ test: $(PROGRAM) $(OUTPUT_BASE).bin $(SHARED_PALETTE) $(USED_PALETTE) $(EHB_BASE
 	@echo "|  __/|  _  | \`--. \\\`--. \  __|| | | | "
 	@echo "| |   | | | |/\__/ /\__/ / |___| |/ /  "
 	@echo "\_|   \_| |_/\____/\____/\____/|___/   "
+	
\ No newline at end of file
diff --git a/tools/imagecon/imagecon.c b/tools/imagecon/imagecon.c
index 42f61b9..43febae 100644
--- a/tools/imagecon/imagecon.c
+++ b/tools/imagecon/imagecon.c
@@ -12,6 +12,7 @@ imagecon_config_t config = {
   .outputPaletteGrey = 0,
   .outputBitplanes = 0,
   .outputCopperList = 0,
+  .outputPng = 0,
   .ehbMode = 0,
   .hamMode = 0,
   .hamBruteForce = 0,
@@ -38,6 +39,7 @@ usage()
 	  "  --output-palette-asm\n"\
 	  "  --output-grey-palette-asm\n"\
 	  "  --output-palette\n"\
+	  "  --output-png\n"\
 	  "  --extra-half-brite\n"\
 	  "  --ham\n"\
 	  "  --ham-brute-force\n"\
@@ -391,6 +393,12 @@ processFile(char* outFilename, imagecon_image_t* ic)
     palette_output(ic, outFilename);
   }
 
+  if (config.outputPng) {
+    char pngFilename[255];
+    sprintf(pngFilename, "%s-converted.png", outFilename);
+    png_write(ic, pngFilename);
+  }
+
   if (config.verbose) {
     printf("done\n\n");
   }
@@ -474,6 +482,7 @@ main(int argc, char **argv)
       {"output-palette-asm", no_argument, &config.outputPaletteAsm, 1},
       {"output-grey-palette-asm", no_argument, &config.outputPaletteGrey, 1},
       {"output-mask", no_argument, &config.outputMask, 1},
+      {"output-png", no_argument, &config.outputPng, 1},
       {"extra-half-brite", no_argument, &config.ehbMode, 1},
       {"ham", no_argument, &config.hamMode, 1},
       {"ham-brute-force", no_argument, &config.hamBruteForce, 1},
@@ -545,7 +554,7 @@ main(int argc, char **argv)
   
   if (strchr(inputFile, ',') == 0) {
     imagecon_image_t ic = {0};
-    png_read(inputFile, &ic);
+    png_read(&ic, inputFile);
     processFile(outputFile, &ic); 
   } else {
     char** files;
@@ -556,7 +565,7 @@ main(int argc, char **argv)
 
     for (int i = 0; i < numFiles; i++) {
       images[i] = calloc(sizeof(imagecon_image_t), 1);
-      png_read(files[i], images[i]);
+      png_read(images[i], files[i]);
     }
     
     imagecon_image_t combined;
diff --git a/tools/imagecon/imagecon.h b/tools/imagecon/imagecon.h
index 5200f10..96c8703 100644
--- a/tools/imagecon/imagecon.h
+++ b/tools/imagecon/imagecon.h
@@ -33,6 +33,7 @@ typedef struct {
   char* overridePalette;
   int paletteOffset;
   int quantize;
+  int outputPng;
   int verbose;
   char** argv;
 } imagecon_config_t;
@@ -83,7 +84,10 @@ extern void
 abort_(const char * s, ...);
 
 extern void 
-png_read(char* file_name, imagecon_image_t* ic);
+png_read(imagecon_image_t* ic, char* file_name);
+
+extern void 
+png_write(imagecon_image_t* ic, char* file_name);
 
 void
 generateQuantizedImage(imagecon_image_t* ic, int usePalette);
diff --git a/tools/imagecon/palette.c b/tools/imagecon/palette.c
index b821869..4682cd6 100644
--- a/tools/imagecon/palette.c
+++ b/tools/imagecon/palette.c
@@ -6,18 +6,29 @@ void palette_loadFile(imagecon_image_t* ic)
   int paletteIndex;
   
   for (paletteIndex = 0; paletteIndex < MAX_PALETTE; paletteIndex++) {
-    unsigned int c;
+
     char buffer[255];
     char* line = fgets(buffer, 255, fp);
     if (!line) {
       break;
     }
+
+#if 1
+    unsigned int c;
     sscanf(buffer, "%x\n", &c);
     
     ic->palette[paletteIndex].r = (c >> 8 & 0xF) << 4;
     ic->palette[paletteIndex].g = (c >> 4 & 0xF) << 4;
     ic->palette[paletteIndex].b = (c >> 0 & 0xF) << 4;
     ic->palette[paletteIndex].a = 255;
+#else // 24 bit palette version
+    sscanf(buffer, "%d %d %d %d\n",
+	   &ic->palette[paletteIndex].r,
+	   &ic->palette[paletteIndex].g,
+	   &ic->palette[paletteIndex].b,
+	   &ic->palette[paletteIndex].a);
+	   
+#endif
   }
 
   ic->numColors = paletteIndex;
@@ -63,7 +74,11 @@ palette_output(imagecon_image_t* ic, char* outFilename)
       printf("%02d: hex=%03x r=%03d g=%03d b=%03d a=%03d\n", i , ic->palette[i].r << 8 | ic->palette[i].g << 4 | ic->palette[i].b, ic->palette[i].r, ic->palette[i].g, ic->palette[i].b, ic->palette[i].a);
     }
     if (paletteFP) {
+#if 1
       fprintf(paletteFP, "%03x\n",  RGB24TORGB12(ic->palette[i].r) << 8 | RGB24TORGB12(ic->palette[i].g) << 4 | RGB24TORGB12(ic->palette[i].b));
+#else // 24 bit palette
+      fprintf(paletteFP, "%03d %03d %03d %03d\n",  ic->palette[i].r , ic->palette[i].g , ic->palette[i].b, ic->palette[i].a);
+#endif
     }
     if (paletteAsmFP) {
       fprintf(paletteAsmFP, "\tlea COLOR%02d(a6),a0\n\tmove.w #$%03x,(a0)\n", i+config.paletteOffset, RGB24TORGB12(ic->palette[i].r) << 8 | RGB24TORGB12(ic->palette[i].g) << 4 | RGB24TORGB12(ic->palette[i].b));
diff --git a/tools/imagecon/png.c b/tools/imagecon/png.c
index e9008da..49d75b7 100644
--- a/tools/imagecon/png.c
+++ b/tools/imagecon/png.c
@@ -22,8 +22,17 @@ _wrapjmp(png_structp png_ptr)
   if (setjmp(png_jmpbuf(png_ptr)))
     abort_("Error during init_io");
 }
+
+static inline void 
+setRGB(png_byte *ptr, amiga_color_t color)
+{
+  *ptr++ = color.r;
+  *ptr++ = color.g;
+  *ptr++ = color.b;
+}
+
 void
-png_read(char* file_name, imagecon_image_t* ic)
+png_read(imagecon_image_t* ic, char* filename)
 {
   png_structp png_ptr; 
   png_byte color_type;
@@ -33,12 +42,12 @@ png_read(char* file_name, imagecon_image_t* ic)
   unsigned char header[8];    // 8 is the maximum size that can be checked
   
   /* open file and test for it being a png */
-  FILE *fp = fopen(file_name, "rb");
+  FILE *fp = fopen(filename, "rb");
   if (!fp)
-    abort_("Failed to open %s", file_name);
+    abort_("Failed to open %s", filename);
   fread(header, 1, 8, fp);
   if (png_sig_cmp(header, 0, 8))
-    abort_("File %s is not recognized as a PNG file", file_name);
+    abort_("File %s is not recognized as a PNG file", filename);
 
   png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);  
 
@@ -124,3 +133,65 @@ png_read(char* file_name, imagecon_image_t* ic)
   ic->amigaImage = calloc(ic->width*ic->height, 1);
   ic->dithered = 0;
 }
+
+
+void
+png_write(imagecon_image_t* ic, char* filename)
+{
+  FILE *fp = file_openWrite(filename);
+  png_structp png_ptr = NULL;
+  png_infop info_ptr = NULL;
+  png_bytep row = NULL;
+
+  png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+
+  if (png_ptr == NULL) {
+    abort_("png_write: could not allocate write struct");
+  }
+
+  info_ptr = png_create_info_struct(png_ptr);
+  if (info_ptr == NULL) {
+    abort_("png_write: could not allocate info struct");
+  }
+
+  if (setjmp(png_jmpbuf(png_ptr))) {
+    abort_("png_write: error during png creation");
+  }
+
+  png_init_io(png_ptr, fp);
+
+  // Write header (8 bit colour depth)
+  png_set_IHDR(png_ptr, info_ptr, ic->width, ic->height,
+	       8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
+	       PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+
+  // Set title
+  if (filename != NULL) {
+    png_text title_text;
+    title_text.compression = PNG_TEXT_COMPRESSION_NONE;
+    title_text.key = "Title";
+    title_text.text = filename;
+    png_set_text(png_ptr, info_ptr, &title_text, 1);
+  }
+
+  png_write_info(png_ptr, info_ptr);
+
+  // Allocate memory for one row (3 bytes per pixel - RGB)
+  row = (png_bytep) malloc(3 * ic->width * sizeof(png_byte));
+
+  // Write image data
+  int x, y;
+  for (y=0 ; y<ic->height ; y++) {
+    for (x=0 ; x<ic->width ; x++) {
+      setRGB(&(row[x*3]), color_getPalettedPixel(ic, x, y));
+    }
+    png_write_row(png_ptr, row);
+  }
+
+  // End write
+  png_write_end(png_ptr, NULL);
+
+  if (info_ptr != NULL) png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
+  if (png_ptr != NULL) png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+  if (row != NULL) free(row);
+}
diff --git a/tools/imagecon/reference/32color-quant.png-converted.png b/tools/imagecon/reference/32color-quant.png-converted.png
new file mode 100644
index 0000000..bfb3bb1
Binary files /dev/null and b/tools/imagecon/reference/32color-quant.png-converted.png differ
diff --git a/tools/imagecon/reference/mission-beach-copper-list.s b/tools/imagecon/reference/32color-quant.png-copper-list.s
similarity index 100%
rename from tools/imagecon/reference/mission-beach-copper-list.s
rename to tools/imagecon/reference/32color-quant.png-copper-list.s
diff --git a/tools/imagecon/reference/mission-beach-grey.s b/tools/imagecon/reference/32color-quant.png-grey.s
similarity index 100%
rename from tools/imagecon/reference/mission-beach-grey.s
rename to tools/imagecon/reference/32color-quant.png-grey.s
diff --git a/tools/imagecon/reference/mission-beach-palette.s b/tools/imagecon/reference/32color-quant.png-palette.s
similarity index 100%
rename from tools/imagecon/reference/mission-beach-palette.s
rename to tools/imagecon/reference/32color-quant.png-palette.s
diff --git a/tools/imagecon/reference/mission-beach.bin b/tools/imagecon/reference/32color-quant.png.bin
similarity index 100%
rename from tools/imagecon/reference/mission-beach.bin
rename to tools/imagecon/reference/32color-quant.png.bin
diff --git a/tools/imagecon/reference/32color-quant.png.pal b/tools/imagecon/reference/32color-quant.png.pal
new file mode 100644
index 0000000..879bacf
--- /dev/null
+++ b/tools/imagecon/reference/32color-quant.png.pal
@@ -0,0 +1,32 @@
+36b
+48b
+363
+ffd
+111
+443
+fec
+37b
+222
+332
+574
+eda
+554
+ca5
+59c
+684
+a95
+bde
+aba
+dc9
+9bc
+aa8
+8a9
+def
+897
+bcc
+fff
+765
+db6
+486
+6ad
+8a4
diff --git a/tools/imagecon/reference/bob-mask.bin b/tools/imagecon/reference/bob-mask.bin
deleted file mode 100644
index 2a18bdb..0000000
Binary files a/tools/imagecon/reference/bob-mask.bin and /dev/null differ
diff --git a/tools/imagecon/reference/dithered_ham-ham.bin b/tools/imagecon/reference/dithered_ham-ham.bin
deleted file mode 100644
index 4d9291a..0000000
Binary files a/tools/imagecon/reference/dithered_ham-ham.bin and /dev/null differ
diff --git a/tools/imagecon/reference/dithered_ham.png-ham.bin b/tools/imagecon/reference/dithered_ham.png-ham.bin
new file mode 100644
index 0000000..ab46fbd
Binary files /dev/null and b/tools/imagecon/reference/dithered_ham.png-ham.bin differ
diff --git a/tools/imagecon/reference/ham-palette.s b/tools/imagecon/reference/dithered_ham.png-palette.s
similarity index 77%
rename from tools/imagecon/reference/ham-palette.s
rename to tools/imagecon/reference/dithered_ham.png-palette.s
index 42197ea..c880851 100644
--- a/tools/imagecon/reference/ham-palette.s
+++ b/tools/imagecon/reference/dithered_ham.png-palette.s
@@ -5,31 +5,31 @@
 	lea COLOR01(a6),a0
 	move.w #$631,(a0)
 	lea COLOR02(a6),a0
-	move.w #$852,(a0)
+	move.w #$742,(a0)
 	lea COLOR03(a6),a0
-	move.w #$210,(a0)
-	lea COLOR04(a6),a0
 	move.w #$79a,(a0)
+	lea COLOR04(a6),a0
+	move.w #$210,(a0)
 	lea COLOR05(a6),a0
-	move.w #$ea6,(a0)
+	move.w #$665,(a0)
 	lea COLOR06(a6),a0
-	move.w #$c84,(a0)
+	move.w #$678,(a0)
 	lea COLOR07(a6),a0
-	move.w #$a63,(a0)
+	move.w #$e95,(a0)
 	lea COLOR08(a6),a0
 	move.w #$552,(a0)
 	lea COLOR09(a6),a0
-	move.w #$688,(a0)
+	move.w #$963,(a0)
 	lea COLOR10(a6),a0
-	move.w #$765,(a0)
+	move.w #$344,(a0)
 	lea COLOR11(a6),a0
-	move.w #$455,(a0)
+	move.w #$987,(a0)
 	lea COLOR12(a6),a0
-	move.w #$fb7,(a0)
+	move.w #$c74,(a0)
 	lea COLOR13(a6),a0
-	move.w #$9aa,(a0)
+	move.w #$fb7,(a0)
 	lea COLOR14(a6),a0
-	move.w #$997,(a0)
+	move.w #$9aa,(a0)
 	lea COLOR15(a6),a0
 	move.w #$edb,(a0)
 	movem.l (sp)+,d0-a6
diff --git a/tools/imagecon/reference/ehb-copper-list.s b/tools/imagecon/reference/ehb-copper-list.s
deleted file mode 100644
index 41fbde4..0000000
--- a/tools/imagecon/reference/ehb-copper-list.s
+++ /dev/null
@@ -1,32 +0,0 @@
-	dc.w $180,$521
-	dc.w $182,$852
-	dc.w $184,$100
-	dc.w $186,$8aa
-	dc.w $188,$79a
-	dc.w $18a,$ea6
-	dc.w $18c,$e95
-	dc.w $18e,$210
-	dc.w $190,$631
-	dc.w $192,$421
-	dc.w $194,$d85
-	dc.w $196,$552
-	dc.w $198,$642
-	dc.w $19a,$799
-	dc.w $19c,$952
-	dc.w $19e,$741
-	dc.w $1a0,$689
-	dc.w $1a2,$a63
-	dc.w $1a4,$c74
-	dc.w $1a6,$664
-	dc.w $1a8,$444
-	dc.w $1aa,$566
-	dc.w $1ac,$331
-	dc.w $1ae,$987
-	dc.w $1b0,$fb7
-	dc.w $1b2,$775
-	dc.w $1b4,$787
-	dc.w $1b6,$aa8
-	dc.w $1b8,$863
-	dc.w $1ba,$fc8
-	dc.w $1bc,$cca
-	dc.w $1be,$fec
diff --git a/tools/imagecon/reference/ehb.bin b/tools/imagecon/reference/ehb.bin
deleted file mode 100644
index 10960b9..0000000
Binary files a/tools/imagecon/reference/ehb.bin and /dev/null differ
diff --git a/tools/imagecon/reference/extra_half_brite.png-copper-list.s b/tools/imagecon/reference/extra_half_brite.png-copper-list.s
new file mode 100644
index 0000000..d30c74e
--- /dev/null
+++ b/tools/imagecon/reference/extra_half_brite.png-copper-list.s
@@ -0,0 +1,32 @@
+	dc.w $180,$36b
+	dc.w $182,$48b
+	dc.w $184,$363
+	dc.w $186,$ffd
+	dc.w $188,$111
+	dc.w $18a,$443
+	dc.w $18c,$fec
+	dc.w $18e,$37b
+	dc.w $190,$222
+	dc.w $192,$332
+	dc.w $194,$574
+	dc.w $196,$eda
+	dc.w $198,$554
+	dc.w $19a,$ca5
+	dc.w $19c,$59c
+	dc.w $19e,$684
+	dc.w $1a0,$a95
+	dc.w $1a2,$bde
+	dc.w $1a4,$aba
+	dc.w $1a6,$dc9
+	dc.w $1a8,$9bc
+	dc.w $1aa,$aa8
+	dc.w $1ac,$8a9
+	dc.w $1ae,$def
+	dc.w $1b0,$897
+	dc.w $1b2,$bcc
+	dc.w $1b4,$fff
+	dc.w $1b6,$765
+	dc.w $1b8,$db6
+	dc.w $1ba,$486
+	dc.w $1bc,$6ad
+	dc.w $1be,$8a4
diff --git a/tools/imagecon/reference/extra_half_brite.png-palette.s b/tools/imagecon/reference/extra_half_brite.png-palette.s
new file mode 100644
index 0000000..f062381
--- /dev/null
+++ b/tools/imagecon/reference/extra_half_brite.png-palette.s
@@ -0,0 +1,67 @@
+	movem.l d0-a6,-(sp)
+	lea CUSTOM,a6
+	lea COLOR00(a6),a0
+	move.w #$36b,(a0)
+	lea COLOR01(a6),a0
+	move.w #$48b,(a0)
+	lea COLOR02(a6),a0
+	move.w #$363,(a0)
+	lea COLOR03(a6),a0
+	move.w #$ffd,(a0)
+	lea COLOR04(a6),a0
+	move.w #$111,(a0)
+	lea COLOR05(a6),a0
+	move.w #$443,(a0)
+	lea COLOR06(a6),a0
+	move.w #$fec,(a0)
+	lea COLOR07(a6),a0
+	move.w #$37b,(a0)
+	lea COLOR08(a6),a0
+	move.w #$222,(a0)
+	lea COLOR09(a6),a0
+	move.w #$332,(a0)
+	lea COLOR10(a6),a0
+	move.w #$574,(a0)
+	lea COLOR11(a6),a0
+	move.w #$eda,(a0)
+	lea COLOR12(a6),a0
+	move.w #$554,(a0)
+	lea COLOR13(a6),a0
+	move.w #$ca5,(a0)
+	lea COLOR14(a6),a0
+	move.w #$59c,(a0)
+	lea COLOR15(a6),a0
+	move.w #$684,(a0)
+	lea COLOR16(a6),a0
+	move.w #$a95,(a0)
+	lea COLOR17(a6),a0
+	move.w #$bde,(a0)
+	lea COLOR18(a6),a0
+	move.w #$aba,(a0)
+	lea COLOR19(a6),a0
+	move.w #$dc9,(a0)
+	lea COLOR20(a6),a0
+	move.w #$9bc,(a0)
+	lea COLOR21(a6),a0
+	move.w #$aa8,(a0)
+	lea COLOR22(a6),a0
+	move.w #$8a9,(a0)
+	lea COLOR23(a6),a0
+	move.w #$def,(a0)
+	lea COLOR24(a6),a0
+	move.w #$897,(a0)
+	lea COLOR25(a6),a0
+	move.w #$bcc,(a0)
+	lea COLOR26(a6),a0
+	move.w #$fff,(a0)
+	lea COLOR27(a6),a0
+	move.w #$765,(a0)
+	lea COLOR28(a6),a0
+	move.w #$db6,(a0)
+	lea COLOR29(a6),a0
+	move.w #$486,(a0)
+	lea COLOR30(a6),a0
+	move.w #$6ad,(a0)
+	lea COLOR31(a6),a0
+	move.w #$8a4,(a0)
+	movem.l (sp)+,d0-a6
diff --git a/tools/imagecon/reference/extra_half_brite.png.bin b/tools/imagecon/reference/extra_half_brite.png.bin
new file mode 100644
index 0000000..f29ed36
Binary files /dev/null and b/tools/imagecon/reference/extra_half_brite.png.bin differ
diff --git a/tools/imagecon/reference/extra_half_brite.png.pal b/tools/imagecon/reference/extra_half_brite.png.pal
new file mode 100644
index 0000000..879bacf
--- /dev/null
+++ b/tools/imagecon/reference/extra_half_brite.png.pal
@@ -0,0 +1,32 @@
+36b
+48b
+363
+ffd
+111
+443
+fec
+37b
+222
+332
+574
+eda
+554
+ca5
+59c
+684
+a95
+bde
+aba
+dc9
+9bc
+aa8
+8a9
+def
+897
+bcc
+fff
+765
+db6
+486
+6ad
+8a4
diff --git a/tools/imagecon/reference/ham-ham.bin b/tools/imagecon/reference/ham-ham.bin
deleted file mode 100644
index 0627fb6..0000000
Binary files a/tools/imagecon/reference/ham-ham.bin and /dev/null differ
diff --git a/tools/imagecon/reference/ham_mode.png-ham.bin b/tools/imagecon/reference/ham_mode.png-ham.bin
new file mode 100644
index 0000000..16c8e9f
Binary files /dev/null and b/tools/imagecon/reference/ham_mode.png-ham.bin differ
diff --git a/tools/imagecon/reference/dithered_ham-palette.s b/tools/imagecon/reference/ham_mode.png-palette.s
similarity index 77%
rename from tools/imagecon/reference/dithered_ham-palette.s
rename to tools/imagecon/reference/ham_mode.png-palette.s
index 42197ea..c880851 100644
--- a/tools/imagecon/reference/dithered_ham-palette.s
+++ b/tools/imagecon/reference/ham_mode.png-palette.s
@@ -5,31 +5,31 @@
 	lea COLOR01(a6),a0
 	move.w #$631,(a0)
 	lea COLOR02(a6),a0
-	move.w #$852,(a0)
+	move.w #$742,(a0)
 	lea COLOR03(a6),a0
-	move.w #$210,(a0)
-	lea COLOR04(a6),a0
 	move.w #$79a,(a0)
+	lea COLOR04(a6),a0
+	move.w #$210,(a0)
 	lea COLOR05(a6),a0
-	move.w #$ea6,(a0)
+	move.w #$665,(a0)
 	lea COLOR06(a6),a0
-	move.w #$c84,(a0)
+	move.w #$678,(a0)
 	lea COLOR07(a6),a0
-	move.w #$a63,(a0)
+	move.w #$e95,(a0)
 	lea COLOR08(a6),a0
 	move.w #$552,(a0)
 	lea COLOR09(a6),a0
-	move.w #$688,(a0)
+	move.w #$963,(a0)
 	lea COLOR10(a6),a0
-	move.w #$765,(a0)
+	move.w #$344,(a0)
 	lea COLOR11(a6),a0
-	move.w #$455,(a0)
+	move.w #$987,(a0)
 	lea COLOR12(a6),a0
-	move.w #$fb7,(a0)
+	move.w #$c74,(a0)
 	lea COLOR13(a6),a0
-	move.w #$9aa,(a0)
+	move.w #$fb7,(a0)
 	lea COLOR14(a6),a0
-	move.w #$997,(a0)
+	move.w #$9aa,(a0)
 	lea COLOR15(a6),a0
 	move.w #$edb,(a0)
 	movem.l (sp)+,d0-a6
diff --git a/tools/imagecon/reference/lace.png-ham.bin b/tools/imagecon/reference/lace.png-ham.bin
new file mode 100644
index 0000000..1d582e6
Binary files /dev/null and b/tools/imagecon/reference/lace.png-ham.bin differ
diff --git a/tools/imagecon/reference/lace.png-palette.s b/tools/imagecon/reference/lace.png-palette.s
new file mode 100644
index 0000000..8810acc
--- /dev/null
+++ b/tools/imagecon/reference/lace.png-palette.s
@@ -0,0 +1,35 @@
+	movem.l d0-a6,-(sp)
+	lea CUSTOM,a6
+	lea COLOR00(a6),a0
+	move.w #$421,(a0)
+	lea COLOR01(a6),a0
+	move.w #$631,(a0)
+	lea COLOR02(a6),a0
+	move.w #$752,(a0)
+	lea COLOR03(a6),a0
+	move.w #$e96,(a0)
+	lea COLOR04(a6),a0
+	move.w #$89a,(a0)
+	lea COLOR05(a6),a0
+	move.w #$210,(a0)
+	lea COLOR06(a6),a0
+	move.w #$689,(a0)
+	lea COLOR07(a6),a0
+	move.w #$963,(a0)
+	lea COLOR08(a6),a0
+	move.w #$c84,(a0)
+	lea COLOR09(a6),a0
+	move.w #$552,(a0)
+	lea COLOR10(a6),a0
+	move.w #$665,(a0)
+	lea COLOR11(a6),a0
+	move.w #$fb7,(a0)
+	lea COLOR12(a6),a0
+	move.w #$886,(a0)
+	lea COLOR13(a6),a0
+	move.w #$455,(a0)
+	lea COLOR14(a6),a0
+	move.w #$aa8,(a0)
+	lea COLOR15(a6),a0
+	move.w #$edb,(a0)
+	movem.l (sp)+,d0-a6
diff --git a/tools/imagecon/reference/shared-copper-list.s b/tools/imagecon/reference/shared-copper-list.s
deleted file mode 100644
index 9629241..0000000
--- a/tools/imagecon/reference/shared-copper-list.s
+++ /dev/null
@@ -1,32 +0,0 @@
-	dc.w $180,$474
-	dc.w $182,$111
-	dc.w $184,$feb
-	dc.w $186,$b85
-	dc.w $188,$37b
-	dc.w $18a,$343
-	dc.w $18c,$222
-	dc.w $18e,$b85
-	dc.w $190,$b85
-	dc.w $192,$36b
-	dc.w $194,$ffd
-	dc.w $196,$353
-	dc.w $198,$48c
-	dc.w $19a,$ca5
-	dc.w $19c,$543
-	dc.w $19e,$574
-	dc.w $1a0,$abc
-	dc.w $1a2,$fe9
-	dc.w $1a4,$684
-	dc.w $1a6,$eca
-	dc.w $1a8,$bdd
-	dc.w $1aa,$9aa
-	dc.w $1ac,$cef
-	dc.w $1ae,$ba8
-	dc.w $1b0,$898
-	dc.w $1b2,$fff
-	dc.w $1b4,$db7
-	dc.w $1b6,$765
-	dc.w $1b8,$375
-	dc.w $1ba,$6ad
-	dc.w $1bc,$8a4
-	dc.w $1be,$587
diff --git a/tools/imagecon/reference/shared.bin b/tools/imagecon/reference/shared.bin
deleted file mode 100644
index ff91fd7..0000000
Binary files a/tools/imagecon/reference/shared.bin and /dev/null differ
diff --git a/tools/imagecon/reference/shared_palette.png.bin b/tools/imagecon/reference/shared_palette.png.bin
new file mode 100644
index 0000000..d35ecd8
Binary files /dev/null and b/tools/imagecon/reference/shared_palette.png.bin differ
diff --git a/tools/imagecon/reference/shared.pal b/tools/imagecon/reference/shared_palette.png.pal
similarity index 100%
rename from tools/imagecon/reference/shared.pal
rename to tools/imagecon/reference/shared_palette.png.pal
diff --git a/tools/imagecon/reference/use_palette.png-palette.s b/tools/imagecon/reference/use_palette.png-palette.s
new file mode 100644
index 0000000..f062381
--- /dev/null
+++ b/tools/imagecon/reference/use_palette.png-palette.s
@@ -0,0 +1,67 @@
+	movem.l d0-a6,-(sp)
+	lea CUSTOM,a6
+	lea COLOR00(a6),a0
+	move.w #$36b,(a0)
+	lea COLOR01(a6),a0
+	move.w #$48b,(a0)
+	lea COLOR02(a6),a0
+	move.w #$363,(a0)
+	lea COLOR03(a6),a0
+	move.w #$ffd,(a0)
+	lea COLOR04(a6),a0
+	move.w #$111,(a0)
+	lea COLOR05(a6),a0
+	move.w #$443,(a0)
+	lea COLOR06(a6),a0
+	move.w #$fec,(a0)
+	lea COLOR07(a6),a0
+	move.w #$37b,(a0)
+	lea COLOR08(a6),a0
+	move.w #$222,(a0)
+	lea COLOR09(a6),a0
+	move.w #$332,(a0)
+	lea COLOR10(a6),a0
+	move.w #$574,(a0)
+	lea COLOR11(a6),a0
+	move.w #$eda,(a0)
+	lea COLOR12(a6),a0
+	move.w #$554,(a0)
+	lea COLOR13(a6),a0
+	move.w #$ca5,(a0)
+	lea COLOR14(a6),a0
+	move.w #$59c,(a0)
+	lea COLOR15(a6),a0
+	move.w #$684,(a0)
+	lea COLOR16(a6),a0
+	move.w #$a95,(a0)
+	lea COLOR17(a6),a0
+	move.w #$bde,(a0)
+	lea COLOR18(a6),a0
+	move.w #$aba,(a0)
+	lea COLOR19(a6),a0
+	move.w #$dc9,(a0)
+	lea COLOR20(a6),a0
+	move.w #$9bc,(a0)
+	lea COLOR21(a6),a0
+	move.w #$aa8,(a0)
+	lea COLOR22(a6),a0
+	move.w #$8a9,(a0)
+	lea COLOR23(a6),a0
+	move.w #$def,(a0)
+	lea COLOR24(a6),a0
+	move.w #$897,(a0)
+	lea COLOR25(a6),a0
+	move.w #$bcc,(a0)
+	lea COLOR26(a6),a0
+	move.w #$fff,(a0)
+	lea COLOR27(a6),a0
+	move.w #$765,(a0)
+	lea COLOR28(a6),a0
+	move.w #$db6,(a0)
+	lea COLOR29(a6),a0
+	move.w #$486,(a0)
+	lea COLOR30(a6),a0
+	move.w #$6ad,(a0)
+	lea COLOR31(a6),a0
+	move.w #$8a4,(a0)
+	movem.l (sp)+,d0-a6
diff --git a/tools/imagecon/reference/use_palette.png.bin b/tools/imagecon/reference/use_palette.png.bin
new file mode 100644
index 0000000..3f9dc44
Binary files /dev/null and b/tools/imagecon/reference/use_palette.png.bin differ
diff --git a/tools/imagecon/reference/use_palette.png.pal b/tools/imagecon/reference/use_palette.png.pal
new file mode 100644
index 0000000..879bacf
--- /dev/null
+++ b/tools/imagecon/reference/use_palette.png.pal
@@ -0,0 +1,32 @@
+36b
+48b
+363
+ffd
+111
+443
+fec
+37b
+222
+332
+574
+eda
+554
+ca5
+59c
+684
+a95
+bde
+aba
+dc9
+9bc
+aa8
+8a9
+def
+897
+bcc
+fff
+765
+db6
+486
+6ad
+8a4
diff --git a/tools/imagecon/test-images/32color-quant.png b/tools/imagecon/test-images/32color-quant.png
new file mode 100644
index 0000000..f2415a8
Binary files /dev/null and b/tools/imagecon/test-images/32color-quant.png differ
diff --git a/tools/imagecon/test-images/bob.png b/tools/imagecon/test-images/bob.png
new file mode 100644
index 0000000..751549e
Binary files /dev/null and b/tools/imagecon/test-images/bob.png differ
diff --git a/tools/imagecon/test-images/dithered_ham.png b/tools/imagecon/test-images/dithered_ham.png
new file mode 100644
index 0000000..6ff89a4
Binary files /dev/null and b/tools/imagecon/test-images/dithered_ham.png differ
diff --git a/tools/imagecon/test-images/extra_half_brite.png b/tools/imagecon/test-images/extra_half_brite.png
new file mode 100644
index 0000000..f2415a8
Binary files /dev/null and b/tools/imagecon/test-images/extra_half_brite.png differ
diff --git a/tools/imagecon/test-images/ham_mode.png b/tools/imagecon/test-images/ham_mode.png
new file mode 100644
index 0000000..6ff89a4
Binary files /dev/null and b/tools/imagecon/test-images/ham_mode.png differ
diff --git a/tools/imagecon/test-images/lace.png b/tools/imagecon/test-images/lace.png
new file mode 100644
index 0000000..114ec58
Binary files /dev/null and b/tools/imagecon/test-images/lace.png differ
diff --git a/tools/imagecon/test-images/use_palette.png b/tools/imagecon/test-images/use_palette.png
new file mode 100644
index 0000000..f2415a8
Binary files /dev/null and b/tools/imagecon/test-images/use_palette.png differ