diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/Element.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/Element.kt
index 7ff1569..f4501bc 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/Element.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/Element.kt
@@ -1,6 +1,6 @@
 package fr.username404.snowygui.gui
 
-import com.mojang.blaze3d.vertex.*
+import com.mojang.blaze3d.vertex.VertexConsumer
 import fr.username404.snowygui.Snowy
 import fr.username404.snowygui.gui.feature.Colors
 import fr.username404.snowygui.utils.RenderingUtil
@@ -58,8 +58,12 @@ abstract class ColoredElement(
             }
         }
     }
+
     internal fun VertexConsumer.colorEnd(color: Int = this@ColoredElement.color) = colorIt(color, opacity)
-    protected fun defaultRectFunc() = RenderingUtil.drawRectangle(x, y, height, width, color, opacity)
+
+    protected fun defaultRectFunc(guiGraphics: GuiGraphics?) = guiGraphics?.let {
+        RenderingUtil.drawRectangle(it, x, y, height, width, color, opacity)
+    }
 }
 
 fun hextoRGB(hex: Int): MutableList<Float> {
diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/elements/ClickBox.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/elements/ClickBox.kt
index 420cf6f..8692def 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/elements/ClickBox.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/elements/ClickBox.kt
@@ -6,14 +6,10 @@ import fr.username404.snowygui.gui.ColoredElement
 import fr.username404.snowygui.gui.feature.ButtonImpl
 import fr.username404.snowygui.gui.feature.Category
 import fr.username404.snowygui.gui.feature.Colors
-import fr.username404.snowygui.utils.RenderingUtil.colorShader
-import fr.username404.snowygui.utils.RenderingUtil.endDraw
-import fr.username404.snowygui.utils.RenderingUtil.prepareDraw
-import fr.username404.snowygui.utils.RenderingUtil.renderBufferWithPipeline
+import fr.username404.snowygui.utils.RenderingUtil
 import io.github.config4k.extract
 import net.minecraft.client.Minecraft
 import net.minecraft.client.gui.GuiGraphics
-import net.minecraft.client.renderer.RenderPipelines
 import net.minecraft.network.chat.Component
 import net.minecraft.util.ARGB
 import org.jetbrains.annotations.ApiStatus
@@ -44,13 +40,13 @@ class ClickBox(
     ) {
         override val color: Int get() = this@ClickBox.color
         override fun render(guiGraphics: GuiGraphics?) {
-            prepareDraw()
-            colorShader(); defaultRectFunc();
-            endDraw()
+            defaultRectFunc(guiGraphics)
         }
         init { height = 8 }
     }
+
     var barStage: Int = 1; private set
+
     fun scroll(d: Double, e: Double, supplied: Double) {
         if (isWithinBounds(d, e, offsetHeight = clickboxHeightOffset.toDouble())) {
             with(buttonsProgressBar) {
@@ -75,33 +71,39 @@ class ClickBox(
         const val clickboxHeightOffset: Int = 80
         private const val inclination: Float = 2.5F
     }
+
     override fun render(guiGraphics: GuiGraphics?) {
-        val x = x.toFloat()
-        val y = y.toFloat()
-        val currentHeight = y + (height + clickboxHeightOffset)
-        prepareDraw()
-        renderBufferWithPipeline(renderPipeline = RenderPipelines.DEBUG_TRIANGLE_FAN) {
-            // Render the header:
-            addVertex(x, y + height, 0.0F).colorEnd()
-            addVertex(x + width + inclination, y + height, 0.0F).colorEnd()
-            addVertex(x + width, y, 0.0F).colorEnd()
-            addVertex(x + inclination, y, 0.0F).colorEnd()
-        }
+        // Header
+        RenderingUtil.drawRectangle(
+            guiGraphics = guiGraphics,
+            x = x,
+            y = y,
+            height = height,
+            width = width,
+            color = color,
+            opacity = opacity
+        )
 
-        renderBufferWithPipeline(renderPipeline = RenderPipelines.DEBUG_TRIANGLE_FAN) {
-            // Render the box:
-            addVertex(x, currentHeight, 0.0F).colorEnd()
-            addVertex(x + width + inclination, currentHeight, 0.0F).colorEnd()
-            addVertex(x + width + inclination, y + height, 0.0F).colorEnd()
-            addVertex(x, y + height, 0.0F).colorEnd()
-        }
+        // Body
+        RenderingUtil.drawRectangle(
+            guiGraphics = guiGraphics,
+            x = x,
+            y = (y + height),
+            height = clickboxHeightOffset,
+            width = width,
+            color = color,
+            opacity = opacity
+        )
 
-        renderBufferWithPipeline(renderPipeline = RenderPipelines.LINES_TRANSLUCENT) {
-            colorShader()
-            addVertex(x + inclination, y + height, 0.0F).colorEnd(Colors.WHITE_LINES.hexValue)
-            addVertex(x + width, y + height, 0.0F).colorEnd(Colors.WHITE_LINES.hexValue)
-        }
-        endDraw()
+        // Separator line
+        RenderingUtil.hLine(
+            guiGraphics = guiGraphics,
+            x1 = (x + 0).toInt(),
+            x2 = (x + width).toInt(),
+            y = (y + height).toInt(),
+            rgb = Colors.WHITE_LINES.hexValue,
+            opacity = 1f
+        )
 
         if (buttons.isNotEmpty()) {
             buttonsProgressBar.apply {
@@ -117,15 +119,15 @@ class ClickBox(
                 }.display(guiGraphics)
             }
         }
-        guiGraphics?.run {
-            with(Minecraft.getInstance().font) {
-                drawString(
-                    this,
-                    Component.nullToEmpty(name.string),
-                    (x + 5).toInt(), (y + 2).toInt(),
-                    ARGB.opaque(Colors.TRANSPARENT.hexValue), false
-                )
-            }
+
+        with(Minecraft.getInstance().font) {
+            guiGraphics?.drawString(
+                this,
+                Component.nullToEmpty(name.string),
+                (x + 5).toInt(), (y + 2).toInt(),
+                ARGB.opaque(Colors.TRANSPARENT.hexValue),
+                false
+            )
         }
     }
 }
diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
index e0554b4..7bd2fea 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
@@ -6,9 +6,6 @@ import fr.username404.snowygui.config.Configuration
 import fr.username404.snowygui.gui.ColoredElement
 import fr.username404.snowygui.gui.feature.ButtonInfo.Companion.Type
 import fr.username404.snowygui.utils.FontUtil
-import fr.username404.snowygui.utils.RenderingUtil.colorShader
-import fr.username404.snowygui.utils.RenderingUtil.endDraw
-import fr.username404.snowygui.utils.RenderingUtil.prepareDraw
 import net.minecraft.client.gui.GuiGraphics
 import net.minecraft.client.input.MouseButtonEvent
 import kotlin.reflect.full.findAnnotation
@@ -46,20 +43,26 @@ sealed class ButtonImpl: ColoredElement(0.0, 0.0, 73, 8, opacity = 0.60F) {
             }.plus(Configuration.foundMacros).toTypedArray()
         )
     }
+
     var isDisabled: Boolean = false; set(value) {
         field = value
         hidden = value
     }
+
     @JvmField
     val info = this::class.findAnnotation<ButtonInfo>() ?: throw Exception("Missing @ButtonInfo annotaton")
+
     final override var color = info.parent.categoryColor; get() {
         return info.parent.box.color.let {
             if (field == it) field else it
         }
     }
+
     open val title: String = this@ButtonImpl::class.simpleName.toString()
     protected open fun execAction() = Unit
+
     private var wasWithinBounds: Boolean = false
+
     var toggled: Boolean = false; private set(value) {
         if (field xor value) {
             if (value) lightUp() else lightDown()
@@ -67,8 +70,10 @@ sealed class ButtonImpl: ColoredElement(0.0, 0.0, 73, 8, opacity = 0.60F) {
             execAction()
         } else field = value
     }
+
     private fun lightUp() { opacity += ButtonInfo.lightningFactor }
     private fun lightDown() { opacity -= ButtonInfo.lightningFactor }
+
     final override fun mouseClicked(event: MouseButtonEvent, isDoubleClick: Boolean): Boolean {
         wasWithinBounds = isWithinBounds(event.x, event.y).also {
             if (it) {
@@ -84,12 +89,12 @@ sealed class ButtonImpl: ColoredElement(0.0, 0.0, 73, 8, opacity = 0.60F) {
         if (wasWithinBounds && (info.kind == Type.CLICK)) {
             execAction()
             lightDown()
-        }; return false
+        }
+        return false
     }
+
     final override fun render(guiGraphics: GuiGraphics?) {
-        prepareDraw()
-        colorShader(); defaultRectFunc();
-        endDraw()
+        defaultRectFunc(guiGraphics)
         if (guiGraphics != null) {
             FontUtil.drawScaled(guiGraphics, title, x + 1, y + 1, 0.75F)
         }
diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/Keystrokes.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/Keystrokes.kt
index 605ebc5..88716f8 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/Keystrokes.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/Keystrokes.kt
@@ -44,7 +44,7 @@ object Keystrokes: ButtonImplWithHud() {
         private fun drawKey(x: Double, y: Double, key: Int, guiGraphics: GuiGraphics?) {
             RenderingUtil.prepareDraw()
             RenderingUtil.drawRectangle(
-                x, y, height / 2, height / 2,
+                guiGraphics, x, y, height / 2, height / 2,
                 color = color, opacity = getDynamicOpacity(key).toFloat()
             )
             RenderingUtil.endDraw()
@@ -68,7 +68,7 @@ object Keystrokes: ButtonImplWithHud() {
         hud.display(it)
     }
     init {
-        if (!Position.values().map { it.value }.contains(currentPosition)) {
+        if (!Position.entries.map { it.value }.contains(currentPosition)) {
             currentPosition = Position.LEFT.value
         }
     }
diff --git a/common/src/main/kotlin/fr/username404/snowygui/utils/RenderingUtil.kt b/common/src/main/kotlin/fr/username404/snowygui/utils/RenderingUtil.kt
index 20924f5..642694e 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/utils/RenderingUtil.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/utils/RenderingUtil.kt
@@ -1,95 +1,44 @@
 package fr.username404.snowygui.utils
 
-import com.mojang.blaze3d.opengl.GlCommandEncoder
 import com.mojang.blaze3d.opengl.GlStateManager
-import com.mojang.blaze3d.pipeline.RenderPipeline
-import com.mojang.blaze3d.pipeline.RenderTarget
-import com.mojang.blaze3d.systems.RenderPass
-import com.mojang.blaze3d.systems.RenderSystem
-import com.mojang.blaze3d.vertex.BufferBuilder
-import com.mojang.blaze3d.vertex.Tesselator
-import com.mojang.blaze3d.vertex.VertexConsumer
 import fr.username404.snowygui.gui.feature.Colors
-import fr.username404.snowygui.gui.hextoRGB
-import net.minecraft.client.Minecraft
-import net.minecraft.client.renderer.RenderPipelines
-import org.joml.Matrix4f
-import org.joml.Vector3f
-import org.joml.Vector4f
-import java.util.OptionalDouble
-import java.util.OptionalInt
+import net.minecraft.client.gui.GuiGraphics
+import net.minecraft.util.ARGB
 
 object RenderingUtil {
-    @JvmStatic
-    fun VertexConsumer.colorIt(color: Int, opacity: Float = 1F): VertexConsumer = hextoRGB(color).run {
-        setColor(get(0), get(1), get(2), opacity)
-    }
-    fun colorShader() {}
-    fun prepareDraw() {
-        colorShader()
-        GlStateManager._enableBlend()
-    }
-    fun endDraw() {
-        GlStateManager._disableBlend()
-    }
-    fun drawRectangle(
-        x: Double, y: Double, height: Int, width: Int,
-        color: Int = Colors.TRANSPARENT(), opacity: Float = 1F
-    ): Unit = renderBufferWithPipeline(renderPipeline = RenderPipelines.DEBUG_QUADS) {
-        fun VertexConsumer.colorIt() = colorIt(color, opacity)
-        val x = x.toFloat() ; val y = y.toFloat()
-        addVertex(x, y + height, 0.0F).colorIt()
-        addVertex(x + width, y + height, 0.0F).colorIt()
-        addVertex(x + width, y, 0.0F).colorIt()
-        addVertex(x, y, 0.0F).colorIt()
+    fun prepareDraw() = GlStateManager._enableBlend()
+    fun endDraw() = GlStateManager._disableBlend()
+
+    private fun argbFromRgb(rgb: Int, opacity: Float = 1f): Int {
+        return ARGB.color(
+            (opacity.coerceIn(0f, 1f) * 255f).toInt().coerceIn(0, 255),
+            (rgb shr 16) and 0xFF,
+            (rgb shr 8) and 0xFF,
+            rgb and 0xFF
+        )
     }
 
-    val gpuSlice = RenderSystem.getDynamicUniforms().writeTransform(
-        RenderSystem.getModelViewMatrix(),
-        Vector4f(1F, 1F, 1F, 1F), // Alternative to old setShaderColor
-        Vector3f(),
-        Matrix4f()
-    )
-    fun renderBufferWithPipeline(
-        name: String = "Dynamic vertex buffer",
-        renderPipeline: RenderPipeline,
-        renderTarget: RenderTarget = Minecraft.getInstance().mainRenderTarget,
-        uniformAndSamplerConsumer: ((RenderPass) -> Unit)? = null,
-        bufferBuilderConsumer: BufferBuilder.() -> Unit,
+    fun drawRectangle(
+        guiGraphics: GuiGraphics?,
+        x: Double,
+        y: Double,
+        height: Int,
+        width: Int,
+        color: Int = Colors.TRANSPARENT(),
+        opacity: Float = 1F
     ) {
-        val mode = renderPipeline.vertexFormatMode
-        val builder = Tesselator.getInstance().begin(mode, renderPipeline.vertexFormat)
-        bufferBuilderConsumer(builder)
-        builder.buildOrThrow().use { meshData ->
-            val encoder = RenderSystem.getDevice().createCommandEncoder() as GlCommandEncoder
-            encoder.createRenderPass(
-                { name },
-                renderTarget.colorTextureView!!,
-                OptionalInt.empty(),
-                renderTarget.depthTextureView!!,
-                OptionalDouble.empty()
-            ).use { renderPass ->
-                encoder.inRenderPass = false;
-                RenderSystem.getDevice().createBuffer(
-                    { name }, 40, meshData.vertexBuffer()
-                ).use { buffer ->
-                    val autoStorageIndexBuffer = RenderSystem.getSequentialBuffer(mode)
-                    renderPass.setPipeline(renderPipeline)
-                    renderPass.setVertexBuffer(0, buffer)
-                    renderPass.setIndexBuffer(
-                        autoStorageIndexBuffer.getBuffer(meshData.drawState().indexCount()),
-                        autoStorageIndexBuffer.type()
-                    )
-                    // RenderSystem.bindDefaultUniforms(renderPass)
-                    renderPass.setUniform(
-                        "DynamicTransforms",
-                        gpuSlice
-                    )
-                    uniformAndSamplerConsumer?.invoke(renderPass)
-                    renderPass.drawIndexed(0, 0, meshData.drawState().indexCount(), 1)
-                }
-                encoder.inRenderPass = false;
-            }
-        }
+        prepareDraw()
+        guiGraphics?.fill(
+            x.toInt(), y.toInt(),
+            (x + width).toInt(), (y + height).toInt(),
+            argbFromRgb(color, opacity)
+        )
+        endDraw()
+    }
+
+    fun hLine(guiGraphics: GuiGraphics?, x1: Int, x2: Int, y: Int, rgb: Int, opacity: Float = 1f) {
+        prepareDraw()
+        guiGraphics?.hLine(x1, x2, y, argbFromRgb(rgb, opacity))
+        endDraw()
     }
 }