diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9ad00cef..6cf0a2765 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -538,6 +538,14 @@ add_test(
   NAME ncpp_build_exceptions
   COMMAND ncpp_build_exceptions
 )
+add_test(
+  NAME sgr-full
+  COMMAND sgr-full
+)
+add_test(
+  NAME sgr-direct
+  COMMAND sgr-direct
+)
 add_test(
   NAME rgb
   COMMAND rgb
diff --git a/USAGE.md b/USAGE.md
index 92d113514..2054939cc 100644
--- a/USAGE.md
+++ b/USAGE.md
@@ -1696,7 +1696,7 @@ int cell_duplicate(struct ncplane* n, cell* targ, const cell* c);
 // Release resources held by the cell 'c'.
 void cell_release(struct ncplane* n, cell* c);
 
-#define NCSTYLE_MASK      0xfffful
+#define NCSTYLE_MASK      0x03fful
 #define NCSTYLE_STANDOUT  0x0080ul
 #define NCSTYLE_UNDERLINE 0x0040ul
 #define NCSTYLE_REVERSE   0x0020ul
diff --git a/include/notcurses/notcurses.h b/include/notcurses/notcurses.h
index 62201f452..902d83156 100644
--- a/include/notcurses/notcurses.h
+++ b/include/notcurses/notcurses.h
@@ -605,7 +605,7 @@ API int cell_duplicate(struct ncplane* n, cell* targ, const cell* c);
 // Release resources held by the cell 'c'.
 API void cell_release(struct ncplane* n, cell* c);
 
-#define NCSTYLE_MASK      0xffffu
+#define NCSTYLE_MASK      0x03ffu
 #define NCSTYLE_STANDOUT  0x0080u
 #define NCSTYLE_UNDERLINE 0x0040u
 #define NCSTYLE_REVERSE   0x0020u
diff --git a/src/poc/sgr-full.c b/src/poc/sgr-full.c
index e32321a00..a89b08717 100644
--- a/src/poc/sgr-full.c
+++ b/src/poc/sgr-full.c
@@ -3,13 +3,17 @@
 #include <notcurses/notcurses.h>
 
 int main(void){
-  struct notcurses* nc = notcurses_init(NULL, NULL);
+  struct notcurses_options nopts = {
+    .flags = NCOPTION_NO_ALTERNATE_SCREEN,
+  };
+  struct notcurses* nc = notcurses_init(&nopts, NULL);
   if(nc == NULL){
     return EXIT_FAILURE;
   }
   int dimy, dimx;
   struct ncplane* n = notcurses_stddim_yx(nc, &dimy, &dimx);
   int y = 0;
+  // FIXME do full permutations?
   ncplane_set_styles(n, NCSTYLE_NONE);
   ncplane_putstr_yx(n, y++, 0, "a ═ none");
   ncplane_set_styles(n, NCSTYLE_ITALIC);
@@ -23,7 +27,7 @@ int main(void){
   ncplane_set_styles(n, NCSTYLE_BLINK);
   ncplane_putstr_yx(n, y++, 0, "a ═ blink");
   ncplane_set_styles(n, NCSTYLE_STRUCK);
-  ncplane_putstr_yx(n, y++, 0, "a ═ strikethrough");
+  ncplane_putstr_yx(n, y++, 0, "a ═ struck");
   ncplane_set_styles(n, NCSTYLE_ITALIC | NCSTYLE_BOLD);
   ncplane_putstr_yx(n, y++, 0, "a ═ italic bold");
   ncplane_set_styles(n, NCSTYLE_ITALIC | NCSTYLE_REVERSE);
@@ -48,11 +52,14 @@ int main(void){
   ncplane_putstr_yx(n, y++, 0, "a ═ bold underline");
   ncplane_set_styles(n, NCSTYLE_BOLD | NCSTYLE_BLINK);
   ncplane_putstr_yx(n, y++, 0, "a ═ bold blink");
-  ncplane_putstr_yx(n, y++, 0, "sleeping for 15s...");
+  ncplane_set_styles(n, NCSTYLE_BOLD | NCSTYLE_REVERSE | NCSTYLE_UNDERLINE |
+                        NCSTYLE_BLINK | NCSTYLE_ITALIC | NCSTYLE_STRUCK);
+  ncplane_putstr_yx(n, y++, 0, "a ═ whoomp! there it is");
+
+  ncplane_set_styles(n, NCSTYLE_NONE);
   if(notcurses_render(nc)){
     goto err;
   }
-  sleep(15);
   if(notcurses_stop(nc)){
     return EXIT_FAILURE;
   }