This runbook covers TODOS.phase-72.72.13.1.5: the V2UI text scaling system
that provides a global UI text size multiplier from 0.5x to 3.0x while
respecting layout constraints.
Runtime Surface#
The text scaling system lives in V2UI:
- C++ header:
V2/ue/Source/V2UI/Public/V2TextScaling.h - C++ source:
V2/ue/Source/V2UI/Private/V2TextScaling.cpp - automation spec:
V2/ue/Source/V2Tests/Private/UI/TextScaling.spec.cpp - contract:
V2/ue/Content/V2/UI/Accessibility/TextScaling_V2_Contract.json - focused checker:
V2/ue/Tools/check-v2-text-scaling.py
FV2TextScaling::BuildDefaultSettings returns Accessibility.TextScaling.V2, a
global text scaling profile with supported multipliers of 0.5x, 0.75x, 1.0x,
1.25x, 1.5x, 2.0x, 2.5x, and 3.0x. FV2UIAccessibilitySettings::TextScale also
accepts the 0.5x-3.0x range.
Required Surfaces#
The profile must include layout rules for:
UI.Text.HUDUI.Text.MenusUI.Text.DialogueUI.Text.SubtitlesUI.Text.QuestTrackerUI.Text.NotificationsUI.Text.Buttons
Each FV2TextScalingLayoutRule provides surface-specific minimum readable font
size, minimum container width, maximum line length, wrapping, responsive layout,
hit-target preservation, overlap prevention, and safe-zone behavior.
Release Policy#
Text scaling is valid only when it:
- exposes one global UI text size multiplier;
- clamps scale to 0.5x through 3.0x;
- reflows containers at scaled sizes;
- wraps text at large scales;
- preserves button hit targets;
- prevents text overlap;
- respects HUD safe zones and constrained layouts.
Verification#
Run these checks after changing text scaling:
python3 V2/ue/Tools/check-v2-text-scaling.py
python3 V2/ue/Tools/check-v2-ui-module.py
python3 V2/ue/Tools/check-v2-ci-workflow.py
python3 V2/tools/validate-v2-docs.py
python3 -m py_compile V2/ue/Tools/check-v2-text-scaling.py V2/ue/Tools/check-v2-ci-workflow.py
python3 -m json.tool V2/ue/Content/V2/UI/Accessibility/TextScaling_V2_Contract.json
Automation test name: V2.UI.Accessibility.TextScaling.AssetContract.
Horde Gates#
text-scaling-sourcetext-scaling-global-multipliertext-scaling-scale-rangetext-scaling-layout-constraintstext-scaling-automationtext-scaling-ci-wired