diff --git a/examples/extrawidgets/extrawidgets.go b/examples/extrawidgets/extrawidgets.go
index 9bc36cd6..dde13b2e 100644
--- a/examples/extrawidgets/extrawidgets.go
+++ b/examples/extrawidgets/extrawidgets.go
@@ -1,3 +1,4 @@
+// Package main presents giu extra widgets (Widgets created in giu, not native to imgui).
 package main
 
 import (
@@ -7,7 +8,7 @@ import (
 )
 
 var (
-	showPD bool    = true
+	showPD         = true
 	radius float32 = 20
 	stack  int32
 )
diff --git a/examples/rangebuilder/rangebuilder.go b/examples/rangebuilder/rangebuilder.go
index be0e52b0..77b0f2d2 100644
--- a/examples/rangebuilder/rangebuilder.go
+++ b/examples/rangebuilder/rangebuilder.go
@@ -1,3 +1,4 @@
+// Package main presents usage of giu.RangeBuilder.
 package main
 
 import (
@@ -21,7 +22,7 @@ func loop() {
 		),
 		g.Dummy(0, 8),
 		g.Label("Below buttons are generated by RangeBuilder"),
-		g.RangeBuilder("Buttons", []string{"Button1", "Button2", "Button3"}, func(i int, str string) g.Widget {
+		g.RangeBuilder("Buttons", []string{"Button1", "Button2", "Button3"}, func(_ int, str string) g.Widget {
 			return g.Button(str).OnClick(func() {
 				fmt.Println(str, "is clicked")
 			})
diff --git a/examples/transparent/transparent.go b/examples/transparent/transparent.go
index 59f9fc89..504fbaad 100644
--- a/examples/transparent/transparent.go
+++ b/examples/transparent/transparent.go
@@ -1,3 +1,4 @@
+// Package main shows how to create a transparent window with custom drawing.
 package main
 
 import (