Update terminal colors

Minor update to make the colors a bit more visible on light
background screen.

pretty.go

@@ -422,6 +422,7 @@ type Style struct {
 	Key, String, Number [2]string
 	True, False, Null   [2]string
 	Escape              [2]string
+	Brackets            [2]string
 	Append              func(dst []byte, c byte) []byte
 }
 
@@ -439,13 +440,14 @@ var TerminalStyle *Style
 
 func init() {
 	TerminalStyle = &Style{
-		Key:    [2]string{"\x1B[94m", "\x1B[0m"},
-		String: [2]string{"\x1B[92m", "\x1B[0m"},
-		Number: [2]string{"\x1B[93m", "\x1B[0m"},
-		True:   [2]string{"\x1B[96m", "\x1B[0m"},
-		False:  [2]string{"\x1B[96m", "\x1B[0m"},
-		Null:   [2]string{"\x1B[91m", "\x1B[0m"},
-		Escape: [2]string{"\x1B[35m", "\x1B[0m"},
+		Key:      [2]string{"\x1B[1m\x1B[94m", "\x1B[0m"},
+		String:   [2]string{"\x1B[32m", "\x1B[0m"},
+		Number:   [2]string{"\x1B[33m", "\x1B[0m"},
+		True:     [2]string{"\x1B[36m", "\x1B[0m"},
+		False:    [2]string{"\x1B[36m", "\x1B[0m"},
+		Null:     [2]string{"\x1B[2m", "\x1B[0m"},
+		Escape:   [2]string{"\x1B[35m", "\x1B[0m"},
+		Brackets: [2]string{"\x1B[1m", "\x1B[0m"},
 		Append: func(dst []byte, c byte) []byte {
 			if c < ' ' && (c != '\r' && c != '\n' && c != '\t' && c != '\v') {
 				dst = append(dst, "\\u00"...)
@@ -539,13 +541,19 @@ func Color(src []byte, style *Style) []byte {
 			}
 		} else if src[i] == '{' || src[i] == '[' {
 			stack = append(stack, stackt{src[i], src[i] == '{'})
+			dst = append(dst, style.Brackets[0]...)
 			dst = apnd(dst, src[i])
+			dst = append(dst, style.Brackets[1]...)
 		} else if (src[i] == '}' || src[i] == ']') && len(stack) > 0 {
 			stack = stack[:len(stack)-1]
+			dst = append(dst, style.Brackets[0]...)
 			dst = apnd(dst, src[i])
+			dst = append(dst, style.Brackets[1]...)
 		} else if (src[i] == ':' || src[i] == ',') && len(stack) > 0 && stack[len(stack)-1].kind == '{' {
 			stack[len(stack)-1].key = !stack[len(stack)-1].key
+			dst = append(dst, style.Brackets[0]...)
 			dst = apnd(dst, src[i])
+			dst = append(dst, style.Brackets[1]...)
 		} else {
 			var kind byte
 			if (src[i] >= '0' && src[i] <= '9') || src[i] == '-' || isNaNOrInf(src[i:]) {

pretty_test.go

@@ -373,15 +373,15 @@ func TestColor(t *testing.T) {
 "arr":["1","2",1,2,true,false,null],
 "obj":{"key1":null,"ar`+"\x1B[36m"+`Cyanr2":[1,2,3,"123","456"]}}
 	`)), nil)
-	if string(res) != `{
-  [94m"hello"[0m: [92m"world"[0m,
-  [94m"what"[0m: [93m123[0m,
-  [94m"arr"[0m: [[92m"1"[0m, [92m"2"[0m, [93m1[0m, [93m2[0m, [96mtrue[0m, [96mfalse[0m, [91mnull[0m],
-  [94m"obj"[0m: {
-    [94m"key1"[0m: [91mnull[0m,
-    [94m"ar\u001b[36mCyanr2"[0m: [[93m1[0m, [93m2[0m, [93m3[0m, [92m"123"[0m, [92m"456"[0m]
-  }
-}
+	if string(res) != `[1m{[0m
+  [1m[94m"hello"[0m[1m:[0m [32m"world"[0m[1m,[0m
+  [1m[94m"what"[0m[1m:[0m [33m123[0m[1m,[0m
+  [1m[94m"arr"[0m[1m:[0m [1m[[0m[32m"1"[0m, [32m"2"[0m, [33m1[0m, [33m2[0m, [36mtrue[0m, [36mfalse[0m, [2mnull[0m[1m][0m[1m,[0m
+  [1m[94m"obj"[0m[1m:[0m [1m{[0m
+    [1m[94m"key1"[0m[1m:[0m [2mnull[0m[1m,[0m
+    [1m[94m"ar\u001b[36mCyanr2"[0m[1m:[0m [1m[[0m[33m1[0m, [33m2[0m, [33m3[0m, [32m"123"[0m, [32m"456"[0m[1m][0m
+  [1m}[0m
+[1m}[0m
 ` {
 		t.Fatal("invalid output")
 	}