correct fg,bg,cs defaults so will work with Xresources and default is gruvbox

config.h

@@ -105,8 +105,8 @@ static const char *colorname[] = {
 	"#ebdbb2",
 	[255] = 0,
 	/* more colors can be added after 255 to use with DefaultXX */
-	"black",   /* 256 -> bg */
-	"white",   /* 257 -> fg */
+	"#282828",   /* 256 -> bg */
+	"#ebdbb2",   /* 257 -> fg */
 	"#add8e6", /* 258 -> cursor */
 };
 
@@ -115,9 +115,9 @@ static const char *colorname[] = {
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 15;
-unsigned int defaultbg = 0;
-static unsigned int defaultcs = 15;
+unsigned int defaultfg = 257;
+unsigned int defaultbg = 256;
+static unsigned int defaultcs = 258;
 static unsigned int defaultrcs = 0;
 
 /*