This patch has been taken from:
https://sourceforge.net/p/pdcurses/discussion/95730/thread/395ac4ed/

diff --git a/win32/pdcscrn.c b/win32/pdcscrn.c
index da84cde..4d9ce51 100644
--- a/win32/pdcscrn.c
+++ b/win32/pdcscrn.c
@@ -555,9 +555,11 @@ void PDC_init_pair(short pair, short fg, short bg)
 
     for (i = 0; i < PDC_OFFSET; i++)
     {
+        const int reverse = (i & (A_REVERSE >> PDC_ATTR_SHIFT));
+
         att = fg | (bg << 4);
 
-        if (i & (A_REVERSE >> PDC_ATTR_SHIFT))
+        if (reverse)
             att = bg | (fg << 4);
         if (i & (A_UNDERLINE >> PDC_ATTR_SHIFT))
             /* No underscores in Windows terminals. */
@@ -568,9 +570,9 @@ void PDC_init_pair(short pair, short fg, short bg)
             att = temp_bg << 4 | temp_bg;
         }
         if (i & (A_BOLD >> PDC_ATTR_SHIFT))
-            att |= 8;
+            att |= reverse ? 128 : 8;
         if (i & (A_BLINK >> PDC_ATTR_SHIFT))
-            att |= 128;
+            att |= reverse ? 8 : 128;
 
         pdc_atrtab[pair * PDC_OFFSET + i] = att;
     }