diff --git a/nle/tests/2020-10-16.00_11_28.frame.5.txt b/nle/tests/2020-10-16.00_11_28.frame.5.txt
new file mode 100644
index 000000000..bdc17c2f8
--- /dev/null
+++ b/nle/tests/2020-10-16.00_11_28.frame.5.txt
@@ -0,0 +1,24 @@
+                                       It is written in the Book of Amaterasu Omikami:
+
+                                           After the Creation, the cruel god Moloch rebelled
+                                           against the authority of Marduk the Creator.
+                   --------------          Moloch stole from Marduk the most powerful of all
+                   .............|          the artifacts of the gods, the Amulet of Yendor,
+                   |d..........{|          and he hid it in the dark cavities of Gehennom, the
+                   |...........d|          Under World, where he now lurks, and bides his time.
+                   |..........@..
+                   ---------+----      Your goddess Amaterasu Omikami seeks to possess the Amulet, and with it
+                                       to gain deserved ascendance over the other gods.
+
+                                       You, a newly trained Hatamoto, have been heralded
+                                       from birth as the instrument of Amaterasu Omikami.  You are destined
+                                       to recover the Amulet for your deity, or die in the
+                                       attempt.  Your hour of destiny has come.  For the sake
+                                       of us all:  Go bravely with Amaterasu Omikami!
+                                       --More--
+
+
+
+
+[CodeMagic the Hatamoto        ] St:16 Dx:14 Co:17 In:11 Wi:9 Ch:7 Lawful
+Dlvl:1 $:0 HP:15(15) Pw:2(2) AC:4 Xp:1 T:1
\ No newline at end of file
diff --git a/nle/tests/test_converter.py b/nle/tests/test_converter.py
index 36b351569..75cad4595 100644
--- a/nle/tests/test_converter.py
+++ b/nle/tests/test_converter.py
@@ -30,6 +30,7 @@
 #  https://alt.org/nethack/trd/?file=https://s3.amazonaws.com/altorg/ttyrec/CodeMagic/2020-10-16.00:11:28.ttyrec.bz2  # noqa: B950
 # This ttyrec uses DECGraphics (https://en.wikipedia.org/wiki/DEC_Special_Graphics)
 TTYREC_DECGRAPHICS = "2020-10-16.00_11_28.ttyrec.bz2"
+TTYREC_DECGRAPHICS_FRAME_5 = "2020-10-16.00_11_28.frame.5.txt"
 
 SEQ_LENGTH = 20
 ROWS = 25
@@ -237,7 +238,7 @@ def test_illegal_buffers(self):
         with pytest.raises(ValueError, match=r"Numpy array required"):
             converter.convert(chars, colors, cursors, timestamps, actions)
 
-    def _test_ibm_graphics(self):
+    def test_ibm_graphics(self):
         seq_length = 10
         converter = Converter(ROWS, COLUMNS)
 
@@ -254,3 +255,23 @@ def _test_ibm_graphics(self):
             for row, line in enumerate(f):
                 actual = chars[-1][row].tobytes().decode("utf-8").rstrip()
                 assert actual == line.rstrip()
+
+    def test_dec_graphics(self):
+        seq_length = 10
+        COLUMNS = 120
+        converter = Converter(ROWS, COLUMNS)
+
+        chars = np.zeros((seq_length, ROWS, COLUMNS), dtype=np.uint8)
+        colors = np.zeros((seq_length, ROWS, COLUMNS), dtype=np.int8)
+        cursors = np.zeros((seq_length, 2), dtype=np.uint16)
+        actions = np.zeros((seq_length), dtype=np.uint8)
+        timestamps = np.zeros((seq_length,), dtype=np.int64)
+
+        converter.load_ttyrec(getfilename(TTYREC_DECGRAPHICS))
+        assert converter.convert(chars, colors, cursors, timestamps, actions) == 0
+
+        with open(getfilename(TTYREC_DECGRAPHICS_FRAME_5)) as f:
+            for row, line in enumerate(f):
+                actual = chars[5][row].tobytes().decode("utf-8").rstrip()
+                # print(actual)
+                assert actual == line.rstrip()
diff --git a/third_party/converter/converter.c b/third_party/converter/converter.c
index f8ecf5c36..23fb07058 100644
--- a/third_party/converter/converter.c
+++ b/third_party/converter/converter.c
@@ -285,7 +285,7 @@ void write_to_buffers(Conversion *conv) {
     for (size_t c = 0; c < conv->cols; ++c) {
       assert(conv->chars.cur < conv->chars.end);
       assert(scr->lines[r]->chars[c].c < 256);
-      *conv->chars.cur++ = strip_gfx(scr->lines[r]->chars[c].c);
+      *conv->chars.cur++ = strip_gfx(scr->lines[r]->chars[c].c, scr->lines[r]->chars[c].a.dec);
       *conv->colors.cur++ = vt_char_color_extract(&(scr->lines[r]->chars[c]));
     }
   }
diff --git a/third_party/converter/stripgfx.c b/third_party/converter/stripgfx.c
index 9f2d9ea41..a7a108e93 100644
--- a/third_party/converter/stripgfx.c
+++ b/third_party/converter/stripgfx.c
@@ -11,7 +11,6 @@
 
 unsigned char gfx_dec_map[256];
 unsigned char gfx_ibm_map[256];
-unsigned int state = 0;
 
 /* clang-format off */
 static unsigned char no_graphics[MAXPCHARS] = {
@@ -348,7 +347,6 @@ static unsigned char dec_graphics[MAXPCHARS] = {
 void populate_gfx_arrays() {
   int i;
 
-  state = 0;
 
   memset(gfx_ibm_map, 0, 256);
   memset(gfx_dec_map, 0, 256);
@@ -373,33 +371,11 @@ void populate_gfx_arrays() {
 }
 
 unsigned char
-strip_gfx(unsigned char inchar)
+strip_gfx(unsigned char inchar, int use_dec)
 {
+  if (use_dec && gfx_dec_map[inchar])
+    return gfx_dec_map[inchar];
   if (gfx_ibm_map[inchar])
     return gfx_ibm_map[inchar];
-
-  if ((inchar == 0x0E) && (state == 0))
-    {
-      state = 1;
-      return 0x00;
-    }
-
-  if ((inchar == 0x0F) && (state == 1))
-    {
-      state = 0;
-      return inchar;
-    }
-
-  if ((inchar == 0x1B) && (state == 1))
-    {
-      state = 0;
-      return inchar;
-    }
-
-  if (gfx_dec_map[inchar] && (state == 1))
-    {
-      return gfx_dec_map[inchar];
-    }
-
   return inchar;
 }
diff --git a/third_party/converter/stripgfx.h b/third_party/converter/stripgfx.h
index 0f9914165..4088e2bbb 100644
--- a/third_party/converter/stripgfx.h
+++ b/third_party/converter/stripgfx.h
@@ -2,6 +2,6 @@
 #define INCLUDED_stripgfx_h
 
 void populate_gfx_arrays();
-unsigned char strip_gfx(unsigned char inchar);
+unsigned char strip_gfx(unsigned char inchar, int use_dec);
 
 #endif /* !INCLUDED_stripgfx_h */
diff --git a/third_party/libtmt/tmt.c b/third_party/libtmt/tmt.c
index 2035731e8..e18ce61b1 100644
--- a/third_party/libtmt/tmt.c
+++ b/third_party/libtmt/tmt.c
@@ -70,10 +70,10 @@ struct TMT{
     size_t pars[PAR_MAX];
     size_t npar;
     size_t arg;
-    enum {S_NUL, S_ESC, S_ARG} state;
+    enum {S_NUL, S_ESC, S_ARG, S_DEC} state;
 };
 
-static TMTATTRS defattrs = {.fg = TMT_COLOR_DEFAULT, .bg = TMT_COLOR_DEFAULT};
+static TMTATTRS defattrs = {.fg = TMT_COLOR_DEFAULT, .bg = TMT_COLOR_DEFAULT, .dec = 0};
 static void writecharatcurs(TMT *vt, wchar_t w);
 
 static wchar_t
@@ -273,7 +273,8 @@ handlechar(TMT *vt, char i)
     DO(S_ESC, "H",          t[c->c].c = L'*')
     DO(S_ESC, "7",          vt->oldcurs = vt->curs; vt->oldattrs = vt->attrs)
     DO(S_ESC, "8",          vt->curs = vt->oldcurs; vt->attrs = vt->oldattrs)
-    ON(S_ESC, "+*()",       vt->ignored = true; vt->state = S_ARG)
+    ON(S_ESC, "(",          vt->state = S_DEC)
+    ON(S_ESC, "+*)",        vt->ignored = true; vt->state = S_ARG)
     DO(S_ESC, "c",          tmt_reset(vt))
     ON(S_ESC, "[",          vt->state = S_ARG)
     ON(S_ARG, "\x1b",       vt->state = S_ESC)
@@ -310,6 +311,9 @@ handlechar(TMT *vt, char i)
     DO(S_ARG, "s",          vt->oldcurs = vt->curs; vt->oldattrs = vt->attrs)
     DO(S_ARG, "u",          vt->curs = vt->oldcurs; vt->attrs = vt->oldattrs)
     DO(S_ARG, "@",          ich(vt))
+    ON(S_DEC, "\x1b",       vt->state = S_ESC)
+    DO(S_DEC, "0",          vt->attrs.dec = true)
+    DO(S_DEC, "B",          vt->attrs.dec = false)
 
     return resetparser(vt), false;
 }
diff --git a/third_party/libtmt/tmt.h b/third_party/libtmt/tmt.h
index ae0ddbb97..386f46f23 100644
--- a/third_party/libtmt/tmt.h
+++ b/third_party/libtmt/tmt.h
@@ -87,6 +87,7 @@ struct TMTATTRS{
     bool invisible;
     tmt_color_t fg;
     tmt_color_t bg;
+    bool dec;
 };
 
 typedef struct TMTCHAR TMTCHAR;