2.3.1

DanOverlay 2.3.1 — Custom-Rate Fixes & Hero-Dan Lazer Polish

Summary

Version 2.3.1 fixes three calculation/display bugs — two reported by users
(custom clock rates in osu!lazer) and one found while developing the live timer
for the Hero-Dan Lazer skin — and brings a full visual polish pass to the Sunny
Rebirth (skin 7) and Hero-Dan Lazer (skin 8) skins.

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Technical Fixes

1. Custom-Rate Interpolation: Alternative-Mode Stages Reverted to the NM Value

Problem

With a native rate (DT 1.5× / HT 0.75× / NM 1.0×) the overlay estimated the
correct stage, but with any osu!lazer custom rate the Signicial / Shoegazer
(and also Celestial / LN Course) stages reverted to the no-mod value.

Reported example: a map estimated Alpha at NM — enabling DT (1.5×) correctly
jumped to Eta, but increasing the rate by a tenth in lazer (1.6×) snapped
back to Alpha even though the displayed DP kept rising.

Root Cause

analyze_map() computes the full result at the two nearest native rates and
interpolates the final fields for custom rates. The alternative-mode dicts were
copied from the NM result and only the numeric dp_* / confidence fields were
interpolated — the display fields (label, stage_key, short, subtitle,
tier, category, beyond) kept the NM values. Reform re-derived its label
from the interpolated DP; the alternative modes did not.

Fix

New public fields_from_dp(dp) helper in each estimator that re-derives every
DP-dependent display field from a dp_* value:

• src/07_model/signicial_estimator.py — stage_key / label / short / subtitle / beyond
• src/07_model/shoegazer_estimator.py — stage_key / label / short / beyond
• src/07_model/celestial_estimator.py — tier / category / short / label / beyond (via _dp_to_slot)
• src/07_model/ln_course_estimator.py — stage_key / label / short / beyond

src/pipeline.py now calls the matching helper after interpolating each mode's
DP, so the displayed stage always matches the interpolated DP. Verified with the
reported scenario (Alpha → DT 1.6×): the stage now follows the DP monotonically
instead of reverting to Alpha.

2. Custom Rates Below HT (0.75×): Calculation Frozen

Problem

Raising the clock rate above HT 0.75× updated the estimate normally, but rates
below 0.75× produced the exact same result as 0.75× — as if the overlay
stopped receiving data (confirmed general, not skin-specific).

Root Cause

In analyze_map() the < 0.75 branch hard-coded _t = 0.0, so the interpolated
result was always the full 0.75× analysis.

Fix

src/pipeline.py — rates below 0.75× now extrapolate against the 0.75–1.0
segment (t = (rate − 0.75) / 0.25, negative below 0.75) instead of clamping.
Verified monotonic across the full lazer range (0.5× → 2.0×) for SR, DP, BPM and
every alternative mode; low extrapolations are floored safely (Reform clamps to
1st Dan via dp_to_label, alternative modes clamp to their minimum stage).

3. Skin 8 (Hero-Dan Lazer) Live Timer Frozen

Problem

The live timer added to the LENGTH pill of the Hero-Dan Lazer skin stayed frozen
at 0:00 / --:-- during gameplay.

Root Cause

renderMapDuration() — which mirrors the timer into the pill and advances the
playback globals (currentPlaybackMs / currentTotalMs) — started with
if (!ui.mapDuration) return;. Skin 8 has no #mapDuration element (it exists
only in the other skins' markup), so the function bailed on every MUSIC_TIME
event before reaching the #ui-len mirror.

Fix

src/01_overlay_ui/web/overlay.js — the guard now bails only when both
#mapDuration and #ui-len are missing. Other skins are unaffected; skin 8's
LENGTH pill now counts live during gameplay.

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Visual Changes

Skin 7 — Sunny Rebirth (ui-7)

Animated Map Title Marquee

Integrated the sliding track with ghost copy (skinMapTitleWrap,
skinMapTitleTrack and skinMapTitleGhost). When the map name is long, the
title scrolls smoothly and continuously; short titles stay static.

Dynamic Transparent Gradient Mask (.has-marquee)

A fade is applied on the left/right edges via
-webkit-mask-image: linear-gradient(...).

Smart behaviour: the mask only activates while the title is actually
scrolling. If the map name is short and fits on screen, it stays 100% solid
and sharp, with no unwanted transparency at the corners.

Skin 8 — Hero-Dan Lazer (ui-8)

Full Support for Alternative Modes (Celestial, Signicial, Shoegazer, LN Course, 7K)

• Category label (#ui-category): switches dynamically between
  CELESTIAL 4K, SIGNICIAL 4K, SHOEGAZER 4K, LN COURSE, 7K and
  REFORM 4K.
• Dan Points (#ui-dp-int / #ui-dp-dec): shows the real, exact DP of the
  active mode (dp_celestial, dp_signicial, dp_shoegazer, dp_ln, dp_7k).
• Mode-specific palette: automatically assigns the official palette of each
  mode/stage to the HUD CSS variables.

Full Multi-Colour Palette Visualisation

• Neon background triangles (#bg-canvas): floating particles now pick
  randomly among all 3–4 colours of the active Dan's palette (leveraging
  full palettes such as 8th Dan, 10th Dan, Gamma, Signicial VII, etc.).
• Side neon pillars (--c-pillar-grad): the vertical pillars now cycle
  smoothly through the Dan's complete colour range.

DP Sublevel Pills with Intensity Gradient (#ui-pills)

When the sublevel pills light up (LOW → HIGH), a progressive intensity
gradient is generated left-to-right: the leftmost pills start soft and
increase opacity and neon glow towards the right.

Higher Contrast & Visibility on the Stat Cards (stat-pill)

MSD, Star Rate, BPM and Length containers were redesigned with a dark frosted
glass background (rgba(10, 12, 18, 0.84) + backdrop-filter: blur(12px)),
a high-contrast thin border (rgba(255, 255, 255, 0.16)), drop shadow and
bright typography — they now stand out cleanly above the background triangles.

Live Timer in the LENGTH Pill (#ui-len)

The timer is synchronised in real time during gameplay in
elapsed / total format (e.g. 0:00 / 2:13 → 1:15 / 2:13).

Animated Map Title Marquee

Same horizontal scroll structure and conditional transparent mask as Skin 7.

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Files Modified

• docs/changelog-2.3.1.md
• src/01_overlay_ui/web/overlay.js — timer mirror fix, per-mode display logic,
  marquee ghost sync, palette plumbing (window.__currentPalette)
• src/01_overlay_ui/web/ui-7/skin.css — marquee wrap + conditional fade mask
• src/01_overlay_ui/web/ui-8/index.html — marquee structure, particle palette
• src/01_overlay_ui/web/ui-8/skin.css — marquee, pillar gradient, pill glow,
  glassmorphism stat cards
• src/07_model/celestial_estimator.py — fields_from_dp()
• src/07_model/ln_course_estimator.py — fields_from_dp()
• src/07_model/shoegazer_estimator.py — fields_from_dp()
• src/07_model/signicial_estimator.py — fields_from_dp()
• src/pipeline.py — HT extrapolation, alternative-mode label re-derivation

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Release: 2.3.1 — 2026-08