diff --git a/CHANGELOG_PENDING.md b/CHANGELOG_PENDING.md
index 45d1c7899..d57446a10 100644
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -14,6 +14,8 @@ program](https://hackerone.com/tendermint).
 * Apps
 
 * Go API
+  - [libs] Remove unused `db/debugDB` and `common/colors.go` & `errors/errors.go` files (@marbar3778)
+
 
 * Blockchain Protocol
 
diff --git a/libs/common/colors.go b/libs/common/colors.go
deleted file mode 100644
index 89dda2c97..000000000
--- a/libs/common/colors.go
+++ /dev/null
@@ -1,95 +0,0 @@
-package common
-
-import (
-	"fmt"
-	"strings"
-)
-
-const (
-	ANSIReset      = "\x1b[0m"
-	ANSIBright     = "\x1b[1m"
-	ANSIDim        = "\x1b[2m"
-	ANSIUnderscore = "\x1b[4m"
-	ANSIBlink      = "\x1b[5m"
-	ANSIReverse    = "\x1b[7m"
-	ANSIHidden     = "\x1b[8m"
-
-	ANSIFgBlack   = "\x1b[30m"
-	ANSIFgRed     = "\x1b[31m"
-	ANSIFgGreen   = "\x1b[32m"
-	ANSIFgYellow  = "\x1b[33m"
-	ANSIFgBlue    = "\x1b[34m"
-	ANSIFgMagenta = "\x1b[35m"
-	ANSIFgCyan    = "\x1b[36m"
-	ANSIFgWhite   = "\x1b[37m"
-
-	ANSIBgBlack   = "\x1b[40m"
-	ANSIBgRed     = "\x1b[41m"
-	ANSIBgGreen   = "\x1b[42m"
-	ANSIBgYellow  = "\x1b[43m"
-	ANSIBgBlue    = "\x1b[44m"
-	ANSIBgMagenta = "\x1b[45m"
-	ANSIBgCyan    = "\x1b[46m"
-	ANSIBgWhite   = "\x1b[47m"
-)
-
-// color the string s with color 'color'
-// unless s is already colored
-func treat(s string, color string) string {
-	if len(s) > 2 && s[:2] == "\x1b[" {
-		return s
-	}
-	return color + s + ANSIReset
-}
-
-func treatAll(color string, args ...interface{}) string {
-	parts := make([]string, 0, len(args))
-	for _, arg := range args {
-		parts = append(parts, treat(fmt.Sprintf("%v", arg), color))
-	}
-	return strings.Join(parts, "")
-}
-
-func Black(args ...interface{}) string {
-	return treatAll(ANSIFgBlack, args...)
-}
-
-func Red(args ...interface{}) string {
-	return treatAll(ANSIFgRed, args...)
-}
-
-func Green(args ...interface{}) string {
-	return treatAll(ANSIFgGreen, args...)
-}
-
-func Yellow(args ...interface{}) string {
-	return treatAll(ANSIFgYellow, args...)
-}
-
-func Blue(args ...interface{}) string {
-	return treatAll(ANSIFgBlue, args...)
-}
-
-func Magenta(args ...interface{}) string {
-	return treatAll(ANSIFgMagenta, args...)
-}
-
-func Cyan(args ...interface{}) string {
-	return treatAll(ANSIFgCyan, args...)
-}
-
-func White(args ...interface{}) string {
-	return treatAll(ANSIFgWhite, args...)
-}
-
-func ColoredBytes(data []byte, textColor, bytesColor func(...interface{}) string) string {
-	s := ""
-	for _, b := range data {
-		if 0x21 <= b && b < 0x7F {
-			s += textColor(string(b))
-		} else {
-			s += bytesColor(fmt.Sprintf("%02X", b))
-		}
-	}
-	return s
-}
diff --git a/libs/db/db_test.go b/libs/db/db_test.go
index 7cb721b26..22b781f95 100644
--- a/libs/db/db_test.go
+++ b/libs/db/db_test.go
@@ -182,8 +182,7 @@ func TestDBBatchWrite(t *testing.T) {
 
 	for i, tc := range testCases {
 		mdb := newMockDB()
-		ddb := NewDebugDB(t.Name(), mdb)
-		batch := ddb.NewBatch()
+		batch := mdb.NewBatch()
 
 		tc.modify(batch)
 
diff --git a/libs/db/debug_db.go b/libs/db/debug_db.go
deleted file mode 100644
index 658cd0555..000000000
--- a/libs/db/debug_db.go
+++ /dev/null
@@ -1,257 +0,0 @@
-package db
-
-import (
-	"fmt"
-	"sync"
-
-	cmn "github.com/tendermint/tendermint/libs/common"
-)
-
-//----------------------------------------
-// debugDB
-
-type debugDB struct {
-	label string
-	db    DB
-}
-
-// For printing all operationgs to the console for debugging.
-func NewDebugDB(label string, db DB) debugDB {
-	return debugDB{
-		label: label,
-		db:    db,
-	}
-}
-
-// Implements atomicSetDeleter.
-func (ddb debugDB) Mutex() *sync.Mutex { return nil }
-
-// Implements DB.
-func (ddb debugDB) Get(key []byte) (value []byte) {
-	defer func() {
-		fmt.Printf("%v.Get(%v) %v\n", ddb.label,
-			cmn.ColoredBytes(key, cmn.Cyan, cmn.Blue),
-			cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	}()
-	value = ddb.db.Get(key)
-	return
-}
-
-// Implements DB.
-func (ddb debugDB) Has(key []byte) (has bool) {
-	defer func() {
-		fmt.Printf("%v.Has(%v) %v\n", ddb.label,
-			cmn.ColoredBytes(key, cmn.Cyan, cmn.Blue), has)
-	}()
-	return ddb.db.Has(key)
-}
-
-// Implements DB.
-func (ddb debugDB) Set(key []byte, value []byte) {
-	fmt.Printf("%v.Set(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Yellow, cmn.Blue),
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	ddb.db.Set(key, value)
-}
-
-// Implements DB.
-func (ddb debugDB) SetSync(key []byte, value []byte) {
-	fmt.Printf("%v.SetSync(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Yellow, cmn.Blue),
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	ddb.db.SetSync(key, value)
-}
-
-// Implements atomicSetDeleter.
-func (ddb debugDB) SetNoLock(key []byte, value []byte) {
-	fmt.Printf("%v.SetNoLock(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Yellow, cmn.Blue),
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	ddb.db.(atomicSetDeleter).SetNoLock(key, value)
-}
-
-// Implements atomicSetDeleter.
-func (ddb debugDB) SetNoLockSync(key []byte, value []byte) {
-	fmt.Printf("%v.SetNoLockSync(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Yellow, cmn.Blue),
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	ddb.db.(atomicSetDeleter).SetNoLockSync(key, value)
-}
-
-// Implements DB.
-func (ddb debugDB) Delete(key []byte) {
-	fmt.Printf("%v.Delete(%v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Red, cmn.Yellow))
-	ddb.db.Delete(key)
-}
-
-// Implements DB.
-func (ddb debugDB) DeleteSync(key []byte) {
-	fmt.Printf("%v.DeleteSync(%v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Red, cmn.Yellow))
-	ddb.db.DeleteSync(key)
-}
-
-// Implements atomicSetDeleter.
-func (ddb debugDB) DeleteNoLock(key []byte) {
-	fmt.Printf("%v.DeleteNoLock(%v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Red, cmn.Yellow))
-	ddb.db.(atomicSetDeleter).DeleteNoLock(key)
-}
-
-// Implements atomicSetDeleter.
-func (ddb debugDB) DeleteNoLockSync(key []byte) {
-	fmt.Printf("%v.DeleteNoLockSync(%v)\n", ddb.label,
-		cmn.ColoredBytes(key, cmn.Red, cmn.Yellow))
-	ddb.db.(atomicSetDeleter).DeleteNoLockSync(key)
-}
-
-// Implements DB.
-func (ddb debugDB) Iterator(start, end []byte) Iterator {
-	fmt.Printf("%v.Iterator(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(start, cmn.Cyan, cmn.Blue),
-		cmn.ColoredBytes(end, cmn.Cyan, cmn.Blue))
-	return NewDebugIterator(ddb.label, ddb.db.Iterator(start, end))
-}
-
-// Implements DB.
-func (ddb debugDB) ReverseIterator(start, end []byte) Iterator {
-	fmt.Printf("%v.ReverseIterator(%v, %v)\n", ddb.label,
-		cmn.ColoredBytes(start, cmn.Cyan, cmn.Blue),
-		cmn.ColoredBytes(end, cmn.Cyan, cmn.Blue))
-	return NewDebugIterator(ddb.label, ddb.db.ReverseIterator(start, end))
-}
-
-// Implements DB.
-// Panics if the underlying db is not an
-// atomicSetDeleter.
-func (ddb debugDB) NewBatch() Batch {
-	fmt.Printf("%v.NewBatch()\n", ddb.label)
-	return NewDebugBatch(ddb.label, ddb.db.NewBatch())
-}
-
-// Implements DB.
-func (ddb debugDB) Close() {
-	fmt.Printf("%v.Close()\n", ddb.label)
-	ddb.db.Close()
-}
-
-// Implements DB.
-func (ddb debugDB) Print() {
-	ddb.db.Print()
-}
-
-// Implements DB.
-func (ddb debugDB) Stats() map[string]string {
-	return ddb.db.Stats()
-}
-
-//----------------------------------------
-// debugIterator
-
-type debugIterator struct {
-	label string
-	itr   Iterator
-}
-
-// For printing all operationgs to the console for debugging.
-func NewDebugIterator(label string, itr Iterator) debugIterator {
-	return debugIterator{
-		label: label,
-		itr:   itr,
-	}
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Domain() (start []byte, end []byte) {
-	defer func() {
-		fmt.Printf("%v.itr.Domain() (%X,%X)\n", ditr.label, start, end)
-	}()
-	start, end = ditr.itr.Domain()
-	return
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Valid() (ok bool) {
-	defer func() {
-		fmt.Printf("%v.itr.Valid() %v\n", ditr.label, ok)
-	}()
-	ok = ditr.itr.Valid()
-	return
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Next() {
-	fmt.Printf("%v.itr.Next()\n", ditr.label)
-	ditr.itr.Next()
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Key() (key []byte) {
-	key = ditr.itr.Key()
-	fmt.Printf("%v.itr.Key() %v\n", ditr.label,
-		cmn.ColoredBytes(key, cmn.Cyan, cmn.Blue))
-	return
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Value() (value []byte) {
-	value = ditr.itr.Value()
-	fmt.Printf("%v.itr.Value() %v\n", ditr.label,
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	return
-}
-
-// Implements Iterator.
-func (ditr debugIterator) Close() {
-	fmt.Printf("%v.itr.Close()\n", ditr.label)
-	ditr.itr.Close()
-}
-
-//----------------------------------------
-// debugBatch
-
-type debugBatch struct {
-	label string
-	bch   Batch
-}
-
-// For printing all operationgs to the console for debugging.
-func NewDebugBatch(label string, bch Batch) debugBatch {
-	return debugBatch{
-		label: label,
-		bch:   bch,
-	}
-}
-
-// Implements Batch.
-func (dbch debugBatch) Set(key, value []byte) {
-	fmt.Printf("%v.batch.Set(%v, %v)\n", dbch.label,
-		cmn.ColoredBytes(key, cmn.Yellow, cmn.Blue),
-		cmn.ColoredBytes(value, cmn.Green, cmn.Blue))
-	dbch.bch.Set(key, value)
-}
-
-// Implements Batch.
-func (dbch debugBatch) Delete(key []byte) {
-	fmt.Printf("%v.batch.Delete(%v)\n", dbch.label,
-		cmn.ColoredBytes(key, cmn.Red, cmn.Yellow))
-	dbch.bch.Delete(key)
-}
-
-// Implements Batch.
-func (dbch debugBatch) Write() {
-	fmt.Printf("%v.batch.Write()\n", dbch.label)
-	dbch.bch.Write()
-}
-
-// Implements Batch.
-func (dbch debugBatch) WriteSync() {
-	fmt.Printf("%v.batch.WriteSync()\n", dbch.label)
-	dbch.bch.WriteSync()
-}
-
-// Implements Batch.
-func (dbch debugBatch) Close() {
-	dbch.bch.Close()
-}
diff --git a/libs/errors/errors.go b/libs/errors/errors.go
deleted file mode 100644
index a03382780..000000000
--- a/libs/errors/errors.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Package errors contains errors that are thrown across packages.
-package errors
-
-// // ErrPermissionsChanged occurs if the file permission have changed since the file was created.
-// type ErrPermissionsChanged struct {
-// 	name      string
-// 	got, want os.FileMode
-// }
-
-// func NewErrPermissionsChanged(name string, got, want os.FileMode) *ErrPermissionsChanged {
-// 	return &ErrPermissionsChanged{name: name, got: got, want: want}
-// }
-
-// func (e ErrPermissionsChanged) Error() string {
-// 	return fmt.Sprintf(
-// 		"file: [%v]\nexpected file permissions: %v, got: %v",
-// 		e.name,
-// 		e.want,
-// 		e.got,
-// 	)
-// }