ScreenFX

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): ScreenFX did not start: java.lang.NoClassDefFoundError: net/minecraft/core/particles/ParticleOptions.

What it needs from Kiln

Mixin
com.mojang.blaze3d.platform.Window
net.fabricmc.api.EnvType
net.minecraft.client.Options
net.minecraft.client.gui.components.AbstractSelectionList
net.minecraft.client.gui.components.AbstractSelectionList.Entry
net.minecraft.client.gui.components.AbstractSliderButton
net.minecraft.client.gui.components.AbstractWidget
net.minecraft.client.gui.components.Button
net.minecraft.client.gui.components.Button.Builder
net.minecraft.client.gui.components.Button.OnPress
net.minecraft.client.gui.components.ContainerObjectSelectionList
net.minecraft.client.gui.components.ContainerObjectSelectionList.Entry
net.minecraft.client.gui.components.EditBox
net.minecraft.client.gui.components.Tooltip
net.minecraft.client.gui.components.tabs.GridLayoutTab
net.minecraft.client.gui.components.tabs.MenuTabBar
net.minecraft.client.gui.components.tabs.MenuTabBar.Builder
net.minecraft.client.gui.components.tabs.Tab
net.minecraft.client.gui.components.tabs.TabManager
net.minecraft.client.gui.components.tabs.TabNavigationBar
net.minecraft.client.renderer.RenderPipelines
net.minecraft.core.particles.ParticleTypes
net.minecraft.locale.Language
net.minecraft.network.chat.CommonComponents
net.minecraft.network.chat.Style
net.minecraft.util.FormattedCharSequence
net.minecraft.core.particles.ParticleOptions
FabricLoader.getEnvironmentType()
Minecraft.getWindow()
Minecraft.options
Font.split()
Font.width()
GuiGraphicsExtractor.blit()
GuiGraphicsExtractor.blurBeforeThisStratum()
GuiGraphicsExtractor.centeredText()
GuiGraphicsExtractor.fillGradient()
GuiGraphicsExtractor.text()
Screen.FOOTER_SEPARATOR
Screen.INWORLD_FOOTER_SEPARATOR
Screen.extractRenderState()
and 6 more

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

Customise your overlays and screen effects, resource pack compatible

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file screenfx-1.5.1+26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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