26.2 HUD and Diagnostics

🖥️ HUD, Diagnostics & UI Rendering

Parameter	Specification
Graphics Extraction Engine	net.minecraft.client.gui.GuiGraphicsExtractor
Target Screen Context	net.minecraft.client.gui.screens.worldselection.AbstractGameRulesScreen
Hover Text Tint	0xFFFFFFAA (Soft Yellow Highlight)
Default Text Tint	0xFFFFFFFF (Crisp White)
Header Hover Box	0x22FFFFFF (Subtle Alpha Overlay)
Category Separator Line	0x44AAAAAA (Horizontal Border)
Toggle Active Color	0x4400FF00 (Emerald Green)
Toggle Inactive Color	0x44FF0000 (Ruby Red)
Accessibility Narration	NarratedElementType.TITLE (NarrationPriority.HOVERED)

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📖 Overview

Minecraft 26.2 introduced major refactors to the client rendering pipeline, migrating standard GUI drawing operations to the modern GuiGraphicsExtractor subsystem.

Collapsible Game Rules is built natively for this rendering engine, utilizing direct vector color fills, font metrics centering, and accessibility narration output with zero frame-rate overhead.

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🎨 Color Palette & Visual Diagnostics

Visual Component	Hex ARGB Code	Visual Description	Usage Location
Hover Fill	0x22FFFFFF	13% opacity white box overlay.	Category header hover & Global actions hover.
Border Divider	0x44AAAAAA	27% opacity light gray 1px line.	Bottom edge of category headers and global actions.
Hovered Text	0xFFFFFFAA	Soft yellow highlighted text.	Category header text & button labels on mouse hover.
Standard Text	0xFFFFFFFF	100% white text.	Category header title & child count badge.
Child Count Badge	ChatFormatting.GRAY	Vanilla gray text ( (N rules)).	Suffix appended to category header labels.
Toggle Active BG	0x4400FF00	27% opacity emerald green.	Background for ✔ ON state in BooleanToggleWidget.
Toggle Inactive BG	0x44FF0000	27% opacity ruby red.	Background for ✖ OFF state in BooleanToggleWidget.

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💻 Rendering Implementation Details

Modern GuiGraphicsExtractor Pipeline

Inside CollapsibleCategoryRuleEntry.extractContent(...):

@Override
public void extractContent(GuiGraphicsExtractor graphics, int mouseX, int mouseY, boolean hovered, float a) {
    // 1. Premium Highlight on hover
    if (hovered) {
        graphics.fill(this.getX() - 2, this.getY(), this.getX() + this.getWidth() + 2, this.getY() + 24, 0x22FFFFFF);
    }

    // 2. Directional arrow, label, and child count badge
    String prefix = this.expanded ? "▼ " : "▶ ";
    Component countBadge = Component.literal(" (" + this.childCount + " rules)").withStyle(ChatFormatting.GRAY);
    Component display = Component.literal(prefix).append(this.label).append(countBadge);

    // 3. Centered text with dynamic hover tint
    graphics.centeredText(Minecraft.getInstance().font, display,
            this.getContentXMiddle(), this.getContentY() + 5, hovered ? 0xFFFFFFAA : 0xFFFFFFFF);
    
    // 4. Subtle separating line at the bottom
    graphics.fill(this.getX() + 10, this.getY() + 23, this.getX() + this.getWidth() - 10, this.getY() + 24, 0x44AAAAAA);
}

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🔊 Audio & Accessibility Diagnostics

Whenever players interact with the UI, standard vanilla sounds provide tactile feedback:

• Event: SoundEvents.UI_BUTTON_CLICK
• Volume: 1.0F
• Pitch: 1.0F
• Trigger Conditions:
  • Mouse left or right click on Category Header.
  • Keyboard Space / Enter on Category Header.
  • Keyboard Left Arrow (collapse) or Right Arrow (expand).
  • Mouse click on [ Expand All ] or [ Collapse All ].

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🔗 Related Documentation

• Master Wiki Portal
• MC 26.2 Version Portal
• Collapsible Categories
• Keyboard Navigation & Accessibility
• Architecture & Mixin Subsystem