diff --git a/.golangci.yml b/.golangci.yml
index bd44ca3e..063d17c3 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -21,7 +21,7 @@ linters:
     - gocyclo
     - err113
     - gofmt
-    #- gofumpt
+    - gofumpt
     - goheader
     - goimports
     #- gomnd
@@ -39,14 +39,18 @@ linters:
     - prealloc
     - predeclared
     - promlinter
+    - reassign
     #- revive
     - rowserrcheck
     - staticcheck
     - stylecheck
+    - tagliatelle
+    - testifylint
     - typecheck
     - unconvert
     - unparam
     - unused
+    - usestdlibvars
     - wastedassign
     - whitespace
     - wrapcheck
@@ -81,6 +85,7 @@ run:
   timeout: 5m
 
 issues:
+  exclude-dirs-use-default: false
   skip-dirs:
     - .github
     - build
diff --git a/CSS.go b/CSS.go
index f53aa434..68d5e9d0 100644
--- a/CSS.go
+++ b/CSS.go
@@ -99,7 +99,6 @@ func ParseCSSStyleSheet(data []byte) error {
 			err = panicToErr(func() {
 				styleColorID = StyleColorIDFromString(styleVarName)
 			})
-
 			if err != nil {
 				return ErrCSSParse{What: "style variable ID", Value: styleVarName}
 			}
diff --git a/Context.go b/Context.go
index ae021c11..13bbdfe0 100644
--- a/Context.go
+++ b/Context.go
@@ -66,6 +66,7 @@ type context struct {
 	m *sync.Mutex
 }
 
+// CreateContext creates a new giu context.
 func CreateContext(b backend.Backend[glfwbackend.GLFWWindowFlags]) *context {
 	result := context{
 		cssStylesheet:       make(cssStylesheet),
@@ -91,10 +92,13 @@ func CreateContext(b backend.Backend[glfwbackend.GLFWWindowFlags]) *context {
 	return &result
 }
 
+// IO returns the imgui.IO object.
 func (c *context) IO() *imgui.IO {
 	return imgui.CurrentIO()
 }
 
+// invalidAllState should be called before rendering.
+// it ensures all states are marked as invalid for that moment.
 func (c *context) invalidAllState() {
 	c.state.Range(func(k, v any) bool {
 		if s, ok := v.(*state); ok {
@@ -107,6 +111,8 @@ func (c *context) invalidAllState() {
 	})
 }
 
+// cleanState removes all states that were not marked as valid during rendering.
+// should be called after rendering.
 func (c *context) cleanState() {
 	c.state.Range(func(k, v any) bool {
 		if s, ok := v.(*state); ok {
@@ -127,18 +133,22 @@ func (c *context) cleanState() {
 	c.widgetIndex = make(map[string]int)
 }
 
+// Backend returns the imgui.backend used by the context.
 func (c *context) Backend() backend.Backend[glfwbackend.GLFWWindowFlags] {
 	return c.backend
 }
 
+// SetState is a generic version of Context.SetState.
 func SetState[T any, PT genericDisposable[T]](c *context, id ID, data PT) {
 	c.state.Store(id, &state{valid: true, data: data})
 }
 
+// SetState stores data in context by id.
 func (c *context) SetState(id ID, data Disposable) {
 	c.state.Store(id, &state{valid: true, data: data})
 }
 
+// GetState is a generic version of Context.GetState.
 func GetState[T any, PT genericDisposable[T]](c *context, id ID) PT {
 	if s, ok := c.load(id); ok {
 		c.m.Lock()
@@ -154,6 +164,7 @@ func GetState[T any, PT genericDisposable[T]](c *context, id ID) PT {
 	return nil
 }
 
+// GetState returns previously stored state by id.
 func (c *context) GetState(id ID) any {
 	if s, ok := c.load(id); ok {
 		c.m.Lock()
diff --git a/ImageWidgets.go b/ImageWidgets.go
index 3e667994..4d6bd67c 100644
--- a/ImageWidgets.go
+++ b/ImageWidgets.go
@@ -350,7 +350,7 @@ func (i *ImageWithURLWidget) Build() {
 			// Load image from url
 			client := &http.Client{Timeout: i.downloadTimeout}
 
-			req, err := http.NewRequestWithContext(downloadContext, "GET", i.imgURL, http.NoBody)
+			req, err := http.NewRequestWithContext(downloadContext, http.MethodGet, i.imgURL, http.NoBody)
 			if err != nil {
 				errorFn(err)
 				return
diff --git a/MasterWindow.go b/MasterWindow.go
index f0fa0eda..346e9757 100644
--- a/MasterWindow.go
+++ b/MasterWindow.go
@@ -394,7 +394,7 @@ func (w *MasterWindow) SetShouldClose(v bool) {
 func (w *MasterWindow) SetInputHandler(handler InputHandler) {
 	Context.InputHandler = handler
 
-	w.backend.SetKeyCallback(func(key, scanCode, action, modifier int) {
+	w.backend.SetKeyCallback(func(key, _, action, modifier int) {
 		k, m, a := keyFromGLFWKey(glfwbackend.GLFWKey(key)), Modifier(modifier), Action(action)
 		handler.Handle(k, m, a)
 
diff --git a/TableWidgets.go b/TableWidgets.go
index 09a991a8..dfd4b44f 100644
--- a/TableWidgets.go
+++ b/TableWidgets.go
@@ -6,6 +6,7 @@ import (
 	"github.com/AllenDang/cimgui-go/imgui"
 )
 
+// TableRowWidget represents a row in a table.
 type TableRowWidget struct {
 	flags        TableRowFlags
 	minRowHeight float64
@@ -13,6 +14,9 @@ type TableRowWidget struct {
 	bgColor      color.Color
 }
 
+// TableRow creates a TbleRowWidget.
+// Each widget will be rendered in a separated column.
+// NOTE: if you want to put multiple widgets in one cell, enclose them in Layout{}.
 func TableRow(widgets ...Widget) *TableRowWidget {
 	return &TableRowWidget{
 		flags:        0,
@@ -22,16 +26,19 @@ func TableRow(widgets ...Widget) *TableRowWidget {
 	}
 }
 
+// BgColor sets the background color of the row.
 func (r *TableRowWidget) BgColor(c color.Color) *TableRowWidget {
 	r.bgColor = c
 	return r
 }
 
+// Flags sets the flags of the row.
 func (r *TableRowWidget) Flags(flags TableRowFlags) *TableRowWidget {
 	r.flags = flags
 	return r
 }
 
+// MinHeight sets the minimum height of the row.
 func (r *TableRowWidget) MinHeight(height float64) *TableRowWidget {
 	r.minRowHeight = height
 	return r
@@ -58,6 +65,7 @@ func (r *TableRowWidget) BuildTableRow() {
 	}
 }
 
+// TableColumnWidget allows to configure table columns headers.
 type TableColumnWidget struct {
 	label              string
 	flags              TableColumnFlags
@@ -65,6 +73,7 @@ type TableColumnWidget struct {
 	userID             uint32
 }
 
+// TableColumn creates a new TableColumnWidget.
 func TableColumn(label string) *TableColumnWidget {
 	return &TableColumnWidget{
 		label:              Context.FontAtlas.RegisterString(label),
@@ -74,16 +83,19 @@ func TableColumn(label string) *TableColumnWidget {
 	}
 }
 
+// Flags sets the flags of the column.
 func (c *TableColumnWidget) Flags(flags TableColumnFlags) *TableColumnWidget {
 	c.flags = flags
 	return c
 }
 
+// InnerWidthOrWeight sets the inner width or weight of the column.
 func (c *TableColumnWidget) InnerWidthOrWeight(w float32) *TableColumnWidget {
 	c.innerWidthOrWeight = w
 	return c
 }
 
+// UserID sets the user id of the column.
 func (c *TableColumnWidget) UserID(id uint32) *TableColumnWidget {
 	c.userID = id
 	return c
@@ -96,6 +108,10 @@ func (c *TableColumnWidget) BuildTableColumn() {
 
 var _ Widget = &TableWidget{}
 
+// TableWidget is a table widget.
+// - Call Table to create new
+// - Then use Rows method to add content
+// - Use Columns method to configure columns (optional).
 type TableWidget struct {
 	id           ID
 	flags        TableFlags
@@ -109,6 +125,7 @@ type TableWidget struct {
 	noHeader     bool
 }
 
+// Table creates new TableWidget.
 func Table() *TableWidget {
 	return &TableWidget{
 		id:           GenAutoID("Table"),
@@ -158,21 +175,25 @@ func (t *TableWidget) Columns(cols ...*TableColumnWidget) *TableWidget {
 	return t
 }
 
+// Rows sets the rows of the table.
 func (t *TableWidget) Rows(rows ...*TableRowWidget) *TableWidget {
 	t.rows = rows
 	return t
 }
 
+// Size sets the size of the table.
 func (t *TableWidget) Size(width, height float32) *TableWidget {
 	t.size = imgui.Vec2{X: width, Y: height}
 	return t
 }
 
+// InnerWidth sets the inner width of the table.
 func (t *TableWidget) InnerWidth(width float64) *TableWidget {
 	t.innerWidth = width
 	return t
 }
 
+// Flags sets the flags of the table.
 func (t *TableWidget) Flags(flags TableFlags) *TableWidget {
 	t.flags = flags
 	return t
diff --git a/Widgets.go b/Widgets.go
index 15cde5f0..9c68fa60 100644
--- a/Widgets.go
+++ b/Widgets.go
@@ -56,6 +56,8 @@ func SameLine() {
 
 var _ Widget = &ChildWidget{}
 
+// ChildWidget is a container widget. It will have a separated scroll bar.
+// Use Child if you want to create a layout of e specific size.
 type ChildWidget struct {
 	id     ID
 	width  float32
@@ -65,36 +67,38 @@ type ChildWidget struct {
 	layout Layout
 }
 
-// Build implements Widget interface.
-func (c *ChildWidget) Build() {
-	if imgui.BeginChildStrV(c.id.String(), imgui.Vec2{X: c.width, Y: c.height}, func() imgui.ChildFlags {
-		if c.border {
-			return imgui.ChildFlagsBorders
-		}
-
-		return 0
-	}(), imgui.WindowFlags(c.flags)) {
-		c.layout.Build()
+// Child creates a new ChildWidget.
+func Child() *ChildWidget {
+	return &ChildWidget{
+		id:     GenAutoID("Child"),
+		width:  0,
+		height: 0,
+		border: true,
+		flags:  0,
+		layout: nil,
 	}
-
-	imgui.EndChild()
 }
 
+// Border sets whether child should have border
+// You can use imgui.ChildFlagsBorders as well.
 func (c *ChildWidget) Border(border bool) *ChildWidget {
 	c.border = border
 	return c
 }
 
+// Size sets child size.
 func (c *ChildWidget) Size(width, height float32) *ChildWidget {
 	c.width, c.height = width, height
 	return c
 }
 
+// Flags allows to specify Child flags.
 func (c *ChildWidget) Flags(flags WindowFlags) *ChildWidget {
 	c.flags = flags
 	return c
 }
 
+// Layout sets widgets that will be rendered inside of the Child.
 func (c *ChildWidget) Layout(widgets ...Widget) *ChildWidget {
 	c.layout = Layout(widgets)
 	return c
@@ -106,15 +110,19 @@ func (c *ChildWidget) ID(id ID) *ChildWidget {
 	return c
 }
 
-func Child() *ChildWidget {
-	return &ChildWidget{
-		id:     GenAutoID("Child"),
-		width:  0,
-		height: 0,
-		border: true,
-		flags:  0,
-		layout: nil,
+// Build makes a Child.
+func (c *ChildWidget) Build() {
+	if imgui.BeginChildStrV(c.id.String(), imgui.Vec2{X: c.width, Y: c.height}, func() imgui.ChildFlags {
+		if c.border {
+			return imgui.ChildFlagsBorders
+		}
+
+		return 0
+	}(), imgui.WindowFlags(c.flags)) {
+		c.layout.Build()
 	}
+
+	imgui.EndChild()
 }
 
 var _ Widget = &ComboCustomWidget{}
diff --git a/examples/CSS-styling/main.go b/examples/CSS-styling/main.go
index eea4a9fa..cf1f77ba 100644
--- a/examples/CSS-styling/main.go
+++ b/examples/CSS-styling/main.go
@@ -22,8 +22,10 @@ func loop() {
 
 func main() {
 	wnd := giu.NewMasterWindow("CSS Style [example]", 640, 480, 0)
+
 	if err := giu.ParseCSSStyleSheet(cssStyle); err != nil {
 		panic(err)
 	}
+
 	wnd.Run(loop)
 }
diff --git a/examples/canvas/canvas.go b/examples/canvas/canvas.go
index 5f50a7c1..b81c85d2 100644
--- a/examples/canvas/canvas.go
+++ b/examples/canvas/canvas.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"image"
 	"image/color"
 
@@ -11,7 +10,6 @@ import (
 var texture *g.Texture
 
 func loop() {
-	fmt.Println(texture.ID())
 	g.SingleWindow().Layout(
 		g.Label("Canvas demo"),
 		g.Custom(func() {
@@ -32,7 +30,8 @@ func loop() {
 			p2 := pos.Add(image.Pt(120, 210))
 			p3 := pos.Add(image.Pt(210, 210))
 			p4 := pos.Add(image.Pt(210, 150))
-			// canvas.AddTriangle(p1, p2, p3, col, 2)
+
+			canvas.AddTriangle(p1, p2, p3, col, 2)
 			canvas.AddQuad(p1, p2, p3, p4, col, 1)
 
 			p1 = p1.Add(image.Pt(120, 60))
@@ -41,6 +40,7 @@ func loop() {
 			p1 = pos.Add(image.Pt(10, 400))
 			p2 = pos.Add(image.Pt(50, 440))
 			p3 = pos.Add(image.Pt(200, 500))
+
 			canvas.PathLineTo(p1)
 			canvas.PathLineTo(p2)
 			canvas.PathBezierCubicCurveTo(p2.Add(image.Pt(40, 0)), p3.Add(image.Pt(-50, 0)), p3, 0)
diff --git a/examples/codeeditor/codeeditor.go b/examples/codeeditor/codeeditor.go
index 6d642b76..7fe337c0 100644
--- a/examples/codeeditor/codeeditor.go
+++ b/examples/codeeditor/codeeditor.go
@@ -1,20 +1,20 @@
+//nolint:wsl,gocritic,staticcheck // this is disabled now.
 package main
 
 import (
 	"fmt"
 
 	"github.com/AllenDang/giu"
-	g "github.com/AllenDang/giu"
 )
 
-var editor *g.CodeEditorWidget
+var editor *giu.CodeEditorWidget
 
 // errMarkers imgui.ErrorMarkers
 
 func loop() {
-	g.SingleWindow().Layout(
-		g.Row(
-			g.Button("Get Text").OnClick(func() {
+	giu.SingleWindow().Layout(
+		giu.Row(
+			giu.Button("Get Text").OnClick(func() {
 				if editor.HasSelection() {
 					fmt.Println(editor.GetSelectedText())
 				} else {
@@ -29,10 +29,10 @@ func loop() {
 
 				fmt.Println("Current line is", editor.GetCurrentLineText())
 			}),
-			g.Button("Set Text").OnClick(func() {
+			giu.Button("Set Text").OnClick(func() {
 				editor.Text("Set text")
 			}),
-			g.Button("Set Error Marker").OnClick(func() {
+			giu.Button("Set Error Marker").OnClick(func() {
 				panic("implement me!")
 				// errMarkers.Clear()
 				// errMarkers.Insert(1, "Error message")
@@ -46,11 +46,11 @@ func loop() {
 }
 
 func main() {
-	wnd := g.NewMasterWindow("Code Editor", 800, 600, 0)
+	wnd := giu.NewMasterWindow("Code Editor", 800, 600, 0)
 
 	// errMarkers = imgui.NewErrorMarkers()
 
-	editor = g.CodeEditor().
+	editor = giu.CodeEditor().
 		ShowWhitespaces(false).
 		TabSize(2).
 		Text("select * from greeting\nwhere date > current_timestamp\norder by date").
diff --git a/examples/customwidget/customwidget.go b/examples/customwidget/customwidget.go
index a4faad1d..abc6a32a 100644
--- a/examples/customwidget/customwidget.go
+++ b/examples/customwidget/customwidget.go
@@ -22,6 +22,7 @@ func CircleButton(id string, clicked func()) *CircleButtonWidget {
 
 func (c *CircleButtonWidget) Build() {
 	width, height := g.CalcTextSize(c.id)
+
 	var padding float32 = 8.0
 
 	// You may want to use GetCursorPos here depending on you use case.
@@ -45,6 +46,7 @@ func (c *CircleButtonWidget) Build() {
 	if drawActive {
 		canvas.AddCircleFilled(center, float32(radius), color.RGBA{12, 12, 200, 255})
 	}
+
 	canvas.AddCircle(center, float32(radius), color.RGBA{200, 12, 12, 255}, int32(radius), 2)
 
 	// Draw text
diff --git a/examples/discussion-648/main.go b/examples/discussion-648/main.go
index b1ef4af1..7a043150 100644
--- a/examples/discussion-648/main.go
+++ b/examples/discussion-648/main.go
@@ -6,8 +6,10 @@ func loop() {
 	giu.Window("wnd").Layout(
 		giu.Custom(func() {
 			const footerPercentage = 0.2
+
 			_, availableH := giu.GetAvailableRegion()
 			_, itemSpacingH := giu.GetItemSpacing()
+
 			giu.Layout{
 				giu.Child().Layout(giu.Label("your layout")).Size(-1, (availableH-itemSpacingH)*(1-footerPercentage)),
 				giu.Child().Layout(giu.Label("footer")).Size(-1, (availableH-itemSpacingH)*footerPercentage),
diff --git a/examples/dragdrop/dragdrop.go b/examples/dragdrop/dragdrop.go
index c8922fac..ee042aa6 100644
--- a/examples/dragdrop/dragdrop.go
+++ b/examples/dragdrop/dragdrop.go
@@ -5,6 +5,7 @@ import (
 	"unsafe"
 
 	"github.com/AllenDang/cimgui-go/imgui"
+
 	g "github.com/AllenDang/giu"
 )
 
@@ -15,6 +16,7 @@ func loop() {
 		g.Row(
 			g.Custom(func() {
 				g.Button("Drag me: 9").Build()
+
 				if imgui.BeginDragDropSource() {
 					data := int(9)
 					imgui.SetDragDropPayload(
@@ -28,6 +30,7 @@ func loop() {
 			}),
 			g.Custom(func() {
 				g.Button("Drag me: 10").Build()
+
 				if imgui.BeginDragDropSource() {
 					data := 10
 					imgui.SetDragDropPayload(
@@ -45,8 +48,9 @@ func loop() {
 			if imgui.BeginDragDropTarget() {
 				payload := imgui.AcceptDragDropPayload("DND_DEMO")
 				if payload != nil && payload.CData != nil {
-					dropTarget = fmt.Sprintf("Dropped value: %d", *(*int)(unsafe.Pointer(payload.Data())))
+					dropTarget = fmt.Sprintf("Dropped value: %d", *(*int)(unsafe.Pointer(payload.Data()))) //nolint:govet // its cimgui-go design
 				}
+
 				imgui.EndDragDropTarget()
 			}
 		}),
diff --git a/examples/fps/main.go b/examples/fps/main.go
index 23ad0be4..9b2a6bf3 100644
--- a/examples/fps/main.go
+++ b/examples/fps/main.go
@@ -19,8 +19,9 @@ func loop() {
 	giu.SingleWindow().Layout(
 		giu.Custom(func() {
 			frames++
-			timeDelta = time.Now().Sub(currentTime)
+			timeDelta = time.Since(currentTime)
 			currentTime = time.Now()
+
 			fpsTime = fpsTime.Add(timeDelta)
 			if fpsTime.Second() >= 1 {
 				currentFPS = frames
diff --git a/examples/gifdecode/gifdecode.go b/examples/gifdecode/gifdecode.go
index 6b2f1c4d..f1bf0f2c 100644
--- a/examples/gifdecode/gifdecode.go
+++ b/examples/gifdecode/gifdecode.go
@@ -13,8 +13,6 @@ import (
 //go:embed golang.gif
 var gifFileData []byte
 
-const gifFilepath = "./golang.gif"
-
 var (
 	frames       []*giu.Texture
 	gifImg       *gif.GIF
@@ -25,8 +23,6 @@ func loop() {
 	// load textures
 	if frames[0] == nil {
 		for i, frame := range gifImg.Image {
-			// lol, this is the most magic thing in go i've ever seen :D
-			i := i
 			giu.NewTextureFromRgba(giu.ImageToRgba(frame), func(t *giu.Texture) {
 				frames[i] = t
 			})
@@ -53,7 +49,9 @@ func main() {
 	go func() {
 		for {
 			time.Sleep(time.Duration(gifImg.Delay[currentFrame]*10) * time.Millisecond)
+
 			giu.Update()
+
 			currentFrame++
 			if currentFrame == len(frames) {
 				currentFrame = 0
diff --git a/examples/hugelist/hugelist.go b/examples/hugelist/hugelist.go
index ef058c93..51c94737 100644
--- a/examples/hugelist/hugelist.go
+++ b/examples/hugelist/hugelist.go
@@ -7,9 +7,7 @@ import (
 	g "github.com/AllenDang/giu"
 )
 
-var (
-	names []string
-)
+var names []string
 
 func buildRows() []*g.TableRowWidget {
 	rows := make([]*g.TableRowWidget, len(names))
diff --git a/examples/imguidemo/imguidemo.go b/examples/imguidemo/imguidemo.go
index dbdf72bb..2ccad205 100644
--- a/examples/imguidemo/imguidemo.go
+++ b/examples/imguidemo/imguidemo.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/AllenDang/cimgui-go/imgui"
+
 	g "github.com/AllenDang/giu"
 )
 
diff --git a/examples/issue-501/main.go b/examples/issue-501/main.go
index a9ff8412..0f09812b 100644
--- a/examples/issue-501/main.go
+++ b/examples/issue-501/main.go
@@ -14,6 +14,7 @@ func loop() {
 		giu.Custom(func() {
 			if shouldFocus {
 				shouldFocus = false
+
 				giu.SetKeyboardFocusHere()
 			}
 		}),
diff --git a/examples/keyboardShortcuts/keyboardShortcuts.go b/examples/keyboardShortcuts/keyboardShortcuts.go
index ec821a4b..464cacd5 100644
--- a/examples/keyboardShortcuts/keyboardShortcuts.go
+++ b/examples/keyboardShortcuts/keyboardShortcuts.go
@@ -29,7 +29,8 @@ func main() {
 			giu.WindowShortcut{
 				Key:      giu.KeyC,
 				Modifier: giu.ModControl,
-				Callback: func() { checkbox1 = !checkbox1 }},
+				Callback: func() { checkbox1 = !checkbox1 },
+			},
 		)
 
 	wnd.Run(loop)
diff --git a/examples/markdown/markdown.go b/examples/markdown/markdown.go
index b0cf0b17..aae88401 100644
--- a/examples/markdown/markdown.go
+++ b/examples/markdown/markdown.go
@@ -72,6 +72,7 @@ func loop() {
 		),
 	)
 }
+
 func main() {
 	wnd := giu.NewMasterWindow("ImGui Markdown [Demo]", 640, 480, 0)
 	wnd.Run(loop)
diff --git a/examples/memoryeditor/memoryeditor.go b/examples/memoryeditor/memoryeditor.go
index 3fc3795f..539bffa9 100644
--- a/examples/memoryeditor/memoryeditor.go
+++ b/examples/memoryeditor/memoryeditor.go
@@ -1,3 +1,4 @@
+//nolint:wsl,gocritic // this is disabled in cimgui-go
 package main
 
 // import (
diff --git a/examples/ondrop/ondrop.go b/examples/ondrop/ondrop.go
index 30244c6c..383661ca 100644
--- a/examples/ondrop/ondrop.go
+++ b/examples/ondrop/ondrop.go
@@ -7,9 +7,7 @@ import (
 	g "github.com/AllenDang/giu"
 )
 
-var (
-	dropInFiles string
-)
+var dropInFiles string
 
 func loop() {
 	g.SingleWindow().Layout(
@@ -25,6 +23,7 @@ func onDrop(names []string) {
 	}
 
 	dropInFiles = sb.String()
+
 	g.Update()
 }
 
diff --git a/examples/plot/main.go b/examples/plot/main.go
index 6c44dd0c..4cdc4ff1 100644
--- a/examples/plot/main.go
+++ b/examples/plot/main.go
@@ -60,6 +60,7 @@ func loop() {
 
 func main() {
 	delta := 0.1
+
 	for x := 0.0; x < 10; x += delta {
 		linedata = append(linedata, math.Sin(x))
 		linedata2 = append(linedata2, math.Cos(x))
@@ -71,6 +72,7 @@ func main() {
 	}
 
 	delta = 1
+
 	for x := 0.0; x < 10; x += delta {
 		bardata = append(bardata, math.Sin(x))
 		bardata2 = append(bardata2, math.Sin(x)-0.2)
diff --git a/examples/pushfont/main.go b/examples/pushfont/main.go
index b7ecd85a..3354ad59 100644
--- a/examples/pushfont/main.go
+++ b/examples/pushfont/main.go
@@ -10,6 +10,7 @@ var font *giu.FontInfo
 
 func loop() {
 	fontPushed := false
+
 	giu.Window("example").Layout(
 		giu.Custom(func() {
 			fontPushed = giu.PushFont(font)
diff --git a/examples/rangebuilder/rangebuilder.go b/examples/rangebuilder/rangebuilder.go
index 978bff61..be0e52b0 100644
--- a/examples/rangebuilder/rangebuilder.go
+++ b/examples/rangebuilder/rangebuilder.go
@@ -21,8 +21,7 @@ func loop() {
 		),
 		g.Dummy(0, 8),
 		g.Label("Below buttons are generated by RangeBuilder"),
-		g.RangeBuilder("Buttons", []interface{}{"Button1", "Button2", "Button3"}, func(i int, v interface{}) g.Widget {
-			str := v.(string)
+		g.RangeBuilder("Buttons", []string{"Button1", "Button2", "Button3"}, func(i int, str string) g.Widget {
 			return g.Button(str).OnClick(func() {
 				fmt.Println(str, "is clicked")
 			})
diff --git a/examples/texturefiltering/texturefiltering.go b/examples/texturefiltering/texturefiltering.go
index 72e19e29..2236f4bd 100644
--- a/examples/texturefiltering/texturefiltering.go
+++ b/examples/texturefiltering/texturefiltering.go
@@ -1,3 +1,4 @@
+//nolint:gocritic,wsl // this is disabled now
 package main
 
 // import (
diff --git a/examples/transparent/transparent.go b/examples/transparent/transparent.go
index 7cf6a176..59f9fc89 100644
--- a/examples/transparent/transparent.go
+++ b/examples/transparent/transparent.go
@@ -5,6 +5,7 @@ import (
 	"image/color"
 
 	"github.com/AllenDang/cimgui-go/imgui"
+
 	g "github.com/AllenDang/giu"
 )
 
@@ -16,26 +17,28 @@ func loop() {
 		g.Custom(func() {
 			canvas := g.GetCanvas()
 			pos := g.GetCursorScreenPos()
-			color := color.RGBA{200, 75, 75, 255}
-			canvas.AddLine(pos, pos.Add(image.Pt(100, 100)), color, 1)
-			canvas.AddRect(pos.Add(image.Pt(110, 0)), pos.Add(image.Pt(200, 100)), color, 5, g.DrawFlagsRoundCornersAll, 1)
-			canvas.AddRectFilled(pos.Add(image.Pt(220, 0)), pos.Add(image.Pt(320, 100)), color, 0, 0)
+			col := color.RGBA{200, 75, 75, 255}
+
+			canvas.AddLine(pos, pos.Add(image.Pt(100, 100)), col, 1)
+			canvas.AddRect(pos.Add(image.Pt(110, 0)), pos.Add(image.Pt(200, 100)), col, 5, g.DrawFlagsRoundCornersAll, 1)
+			canvas.AddRectFilled(pos.Add(image.Pt(220, 0)), pos.Add(image.Pt(320, 100)), col, 0, 0)
 
 			pos0 := pos.Add(image.Pt(0, 110))
 			cp0 := pos.Add(image.Pt(80, 110))
 			cp1 := pos.Add(image.Pt(50, 210))
 			pos1 := pos.Add(image.Pt(120, 210))
-			canvas.AddBezierCubic(pos0, cp0, cp1, pos1, color, 1, 0)
+			canvas.AddBezierCubic(pos0, cp0, cp1, pos1, col, 1, 0)
 
 			p1 := pos.Add(image.Pt(160, 110))
 			p2 := pos.Add(image.Pt(120, 210))
 			p3 := pos.Add(image.Pt(210, 210))
 			p4 := pos.Add(image.Pt(210, 150))
-			// canvas.AddTriangle(p1, p2, p3, color, 2)
-			canvas.AddQuad(p1, p2, p3, p4, color, 1)
+
+			canvas.AddTriangle(p1, p2, p3, col, 2)
+			canvas.AddQuad(p1, p2, p3, p4, col, 1)
 
 			p1 = p1.Add(image.Pt(120, 60))
-			canvas.AddCircleFilled(p1, 50, color)
+			canvas.AddCircleFilled(p1, 50, col)
 		}),
 	)
 	g.PopStyleColor()
diff --git a/examples/update/update.go b/examples/update/update.go
index 01a39f6c..00883de8 100644
--- a/examples/update/update.go
+++ b/examples/update/update.go
@@ -8,15 +8,14 @@ import (
 	"github.com/AllenDang/giu"
 )
 
-var (
-	counter int
-)
+var counter int
 
 func refresh() {
 	ticker := time.NewTicker(time.Second * 1)
 
 	for {
 		counter = rand.Intn(100)
+
 		giu.Update()
 
 		<-ticker.C