SmoothHud

What it needs from Kiln

• Mixin
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.input.KeyEvent
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.util.Mth
• net.minecraft.world.entity.player.Inventory
• Minecraft.getCameraEntity()
• Minecraft.setScreenAndShow()
• GuiGraphicsExtractor.blit()
• GuiGraphicsExtractor.centeredText()
• Screen.extractRenderState()
• Screen.keyPressed()
• Player.getInventory()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

animate the selected hotbar slot highlight when switching slots

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file smoothhud-1.3-26.3.jar. The scan reads the mod's classes; it does not run them.