diff --git a/build.yml b/build.yml
index 338e9ae..592e4c4 100644
--- a/build.yml
+++ b/build.yml
@@ -1,7 +1,7 @@
 # Neon Build File (http://github.com/c4s4/neon)
 
 doc:     Build file for NeON
-extends: [golang]
+extends: [c4s4/build/golang.yml]
 default: [clean, fmt, lint, test, bugs]
 expose:  [clean, fmt, lint, test, bugs, install, release]
 configuration: '~/.neon/github.yml'
diff --git a/neon/builtin/color.go b/neon/builtin/color.go
new file mode 100644
index 0000000..9ce7f5b
--- /dev/null
+++ b/neon/builtin/color.go
@@ -0,0 +1,107 @@
+package builtin
+
+import (
+	"github.com/c4s4/neon/neon/build"
+	colorize "github.com/fatih/color"
+)
+
+func init() {
+	build.AddBuiltin(build.BuiltinDesc{
+		Name: "color",
+		Func: color,
+		Help: `Colorize string.
+
+Arguments:
+
+- The name of the color (black, red, green, yellow, blue, magenta, cyan or white).
+- The string to colorize.
+
+Color capitalization determines the intensity of the color:
+
+- Use standard color names (such as black) for normal colors.
+- Use capitalized color names (such as Black) for bold colors.
+- Use uppercase color names (such as BLACK) for bold background colors.
+- Use uncapitalized uppercase color names (such as bLACK) for background colors.
+
+Returns:
+
+- The colorized string.
+
+Examples:
+
+    # green message
+    color("green", "OK")
+    # returns: string "OK" colorized in green`,
+	})
+}
+
+func color(color, text string) string {
+	switch color {
+	case "black":
+		return colorize.New(colorize.FgBlack).Sprint(text)
+	case "red":
+		return colorize.New(colorize.FgRed).Sprint(text)
+	case "green":
+		return colorize.New(colorize.FgGreen).Sprint(text)
+	case "yellow":
+		return colorize.New(colorize.FgYellow).Sprint(text)
+	case "blue":
+		return colorize.New(colorize.FgBlue).Sprint(text)
+	case "magenta":
+		return colorize.New(colorize.FgMagenta).Sprint(text)
+	case "cyan":
+		return colorize.New(colorize.FgCyan).Sprint(text)
+	case "white":
+		return colorize.New(colorize.FgWhite).Sprint(text)
+	case "Black":
+		return colorize.New(colorize.FgBlack, colorize.Bold).Sprint(text)
+	case "Red":
+		return colorize.New(colorize.FgRed, colorize.Bold).Sprint(text)
+	case "Green":
+		return colorize.New(colorize.FgGreen, colorize.Bold).Sprint(text)
+	case "Yellow":
+		return colorize.New(colorize.FgYellow, colorize.Bold).Sprint(text)
+	case "Blue":
+		return colorize.New(colorize.FgBlue, colorize.Bold).Sprint(text)
+	case "Magenta":
+		return colorize.New(colorize.FgMagenta, colorize.Bold).Sprint(text)
+	case "Cyan":
+		return colorize.New(colorize.FgCyan, colorize.Bold).Sprint(text)
+	case "White":
+		return colorize.New(colorize.FgWhite, colorize.Bold).Sprint(text)
+	case "bLACK":
+		return colorize.New(colorize.BgBlack).Sprint(text)
+	case "rED":
+		return colorize.New(colorize.BgRed).Sprint(text)
+	case "gREEN":
+		return colorize.New(colorize.BgGreen).Sprint(text)
+	case "yELLOW":
+		return colorize.New(colorize.BgYellow).Sprint(text)
+	case "bLUE":
+		return colorize.New(colorize.BgBlue).Sprint(text)
+	case "mAGENTA":
+		return colorize.New(colorize.BgMagenta).Sprint(text)
+	case "cYAN":
+		return colorize.New(colorize.BgCyan).Sprint(text)
+	case "wHITE":
+		return colorize.New(colorize.BgWhite).Sprint(text)
+	case "BLACK":
+		return colorize.New(colorize.BgBlack, colorize.Bold).Sprint(text)
+	case "RED":
+		return colorize.New(colorize.BgRed, colorize.Bold).Sprint(text)
+	case "GREEN":
+		return colorize.New(colorize.BgGreen, colorize.Bold).Sprint(text)
+	case "YELLOW":
+		return colorize.New(colorize.BgYellow, colorize.Bold).Sprint(text)
+	case "BLUE":
+		return colorize.New(colorize.BgBlue, colorize.Bold).Sprint(text)
+	case "MAGENTA":
+		return colorize.New(colorize.BgMagenta, colorize.Bold).Sprint(text)
+	case "CYAN":
+		return colorize.New(colorize.BgCyan, colorize.Bold).Sprint(text)
+	case "WHITE":
+		return colorize.New(colorize.BgWhite, colorize.Bold).Sprint(text)
+	default:
+		return text
+	}
+}
diff --git a/neon/builtin/find.go b/neon/builtin/find.go
index 42171fc..c4c4a40 100644
--- a/neon/builtin/find.go
+++ b/neon/builtin/find.go
@@ -19,7 +19,7 @@ Arguments:
 
 Returns:
 
-- Files as a list of strings.
+- Files as a sorted list of strings.
 
 Examples: