Tsumiru

Appearance

Reader settings ​

Reader settings live in two places:

  • Settings → Reader holds the global defaults that apply to every series.
  • Inside the reader, the gear in the bottom bar opens a settings sheet with three tabs: Reading Mode, General, and Custom filter. Changes apply as you make them, and the For this series block at the top of the first tab overrides settings for just the series you're reading.

Per-series overrides are stored on the server, so they follow the series to your other devices.

Reading modes ​

Pick a mode from the Reading mode chips in the sheet:

  • Long strip: continuous vertical scroll with no gaps (best for manhwa and webtoons).
  • Long strip with gaps: continuous vertical scroll with a small gap between pages.
  • Paged (left to right): one page at a time, turning left to right.
  • Paged (right to left): page-by-page in traditional manga order (the default).
  • Paged (vertical): page-by-page, turning vertically.
  • Default: follow your global default (when set for a series).

The factory default is Paged (right to left). Manhwa, manhua, and webtoons still open as a long strip when Auto reading mode is on (see below). In the long strips, reaching the end of a chapter scrolls straight on into the next one.

Settings → Reader offers the same modes under the same names. A series still set to the old Continuous horizontal (legacy) mode shows a dedicated legacy chip in the sheet until you pick another mode.

For this series ​

Everything in the sheet's For this series block overrides the global default for the current series only:

  • Reading mode: the chips above.
  • Rotation: lock or free the screen orientation for this series: Default, Free, Portrait, Landscape, Locked portrait, Locked landscape, or Reverse portrait.
  • Tap zones: the tap layout for paging: Default, L Shaped, Kindle-ish, Edge, Right And Left, or Disabled. Tap zones are on out of the box: Default picks Right And Left for the horizontal paged modes and L Shaped everywhere else.
  • Invert tap zones: flip the tap directions: None, Horizontal, Vertical, or Both (shown while tap zones are enabled).
  • Reader Padding: side margins so pages aren't edge-to-edge.
  • Magnifier Size: how large the long-press magnifier is (long-press and drag to magnify part of a page).

Below that block, the tab shows the settings for whichever reader the current mode uses, under a Paged or Long strip heading. Those groups are global and mirror the same groups in Settings → Reader.

Paged modes ​

The Paged group controls the paged modes:

  • Scale type: how each page fits the screen: Fit screen, Fit width, Fit height, Original size, Smart fit, or Stretch.
  • Page layout: Single page, Double pages, or Automatic (two pages side by side when the screen has room).
  • Center margin type: add a gutter down the middle of a spread: None, Double pages, Wide pages, or Double and wide.
  • Split wide pages: cut a double-width scan into two screen-sized halves. Invert split pages placement swaps which half you see first.
  • Rotate wide pages to fit: turn a wide page 90° so it fills the screen instead of shrinking. Invert rotation of wide pages rotates it the other way.
  • Invert double pages: swap the left/right order of a double-page layout.
  • Dual page spread in landscape: show a true two-page spread when the device is in landscape.
  • Crop borders: trim the empty margins around pages.
  • Smaller tap zones: shrink the page-turn tap areas.
  • Animate page transitions: animate page turns instead of snapping.
  • Auto advance interval: the pace for hands-free page turning (see auto-scroll).
  • Pan wide images: pan across a page that's wider than the screen instead of shrinking it.

Zoom ​

Each reader has its own zoom settings, so changing one doesn't touch the other:

  • Double tap to zoom: on by default. Double-tap to zoom in at the point you tapped, and double-tap again to zoom back out.
  • Pinch to Zoom: pinch to zoom.
  • Disable zoom in / Disable zoom out: turn off zooming in that direction (the long strips only offer Disable zoom out).

Long strips ​

The Long strip group covers the strip modes:

  • Long strip scale: how the strip fits the window: Fit screen, 4:3, 3:2, 16:9, 20:9, or Original size, which shows pages at their true size instead of stretching them to fit.
  • Maximum width: cap how wide the strip can grow, as a percentage of the window (%) or a fixed pixel width (px). It's greyed out under Original size, since pages at their native size never widen.
  • Crop borders: trim page margins, set separately for Long strip and Long strip with gaps.
  • Smaller tap zones: shrink the page-turn tap areas.
  • Smooth Auto Scroll and Auto scroll interval: the glide and pace for hands-free scrolling (see auto-scroll).
  • Keyboard scroll distance: how far each key press scrolls on a keyboard: Tiny, Small, Medium, or Large.
  • Animate page transitions: animate page jumps instead of snapping.

The tap-zone and zoom settings apply per reader here too, so the strips can behave differently from the paged modes.

Auto-scroll and auto-advance ​

Tsumiru can move through a chapter hands-free. Pull down the handle at the top of the reader to open the auto-scroll bar, then flip the switch:

  • In the long-strip modes it's Auto scroll: the page glides down on its own.
  • In the paged modes it's Auto advance: it turns one page at a time.

The − and + buttons set the pace in seconds per step, from 1 to 30. Long strips start at 3 seconds and paged modes at 5, and each remembers its own pace. The same paces live in the settings sheet as Auto scroll interval (Long strip) and Auto advance interval (Paged). It stops the moment you scroll or swipe by hand, when you switch away from the app, and when there are no more pages to show. On a keyboard, Space starts and stops auto-scroll in the long-strip modes, and = / − change the pace.

Smooth Auto Scroll (in the Long strip group, on by default) makes the long-strip glide a continuous drift; turn it off for a fixed jump each interval.

General tab ​

The sheet's General tab collects the global display and behavior settings (also in Settings → Reader):

  • Background color: Black, Gray, White, or Auto.
  • Show page number: overlay the current page number while you read.
  • Seekbar: vertical modes run the seekbar down the side. Left-handed vertical seekbar moves it to the left, Show vertical seekbar in landscape keeps it vertical in landscape, and Force horizontal seekbar makes it horizontal everywhere.
  • Fullscreen: hide the system bars while reading. Show content in cutout area lets pages extend into the camera cutout.
  • Keep screen on: hold the screen awake while you're reading.
  • Show actions on long tap: on by default. Long-press a page for Copy, Open In Web, Share image, and Save to gallery.
  • Always show chapter transition: always show the between-chapters transition page.
  • Flash on page change: flash the screen on each page turn (helps ghosting on e-ink screens). Tune it with Flash duration, Flash every (1 to 10 pages), and Flash with (Black, White, or White and Black).
  • Auto reading mode: open manhwa, manhua, and webtoons in the long-strip reader automatically.

Custom filter tab ​

On the Custom filter tab the sheet's backdrop turns transparent so the page stays visible, and every change previews live:

  • Custom brightness: a reader-only brightness level, independent of the system slider.
  • Custom color filter: tint the page with Red, Green, Blue, and Alpha sliders, and pick a Color filter blend mode: Default, Multiply, Screen, Overlay, Dodge / Lighten, or Burn / Darken.
  • Grayscale: render pages in black and white.
  • Inverted: invert page colors.

Only in Settings → Reader ​

A few settings live only on the global screen:

  • Tap zones and Invert tap zones: the global tap-zone defaults, set separately in the Paged and Long strip groups (the per-series versions are in the sheet).
  • Show tap zones overlay: briefly flash the tap layout when you open a chapter (off by default).
  • Swipe toggle: swipe to change chapter. Last page swipe restricts that to the last/first page only.
  • Volume Keys: page with the volume keys, with an Invert Volume Keys option (Android).
  • Reader initial overlay: show the title and controls when you open a chapter.
  • Scroll animation: animate page jumps instead of snapping instantly.
  • Reading feedback toasts: turn off to hide messages like "loading next chapter" and "no more chapters".
  • Ignore Safe Area: let content extend into the notch and home-indicator areas (Android & iOS).

The page number, chapter-skip buttons, bookmark toggle, and the settings gear all live in the reader's bottom bar. Tap the page to bring up the overlay.