Limner v0.7.2: Per-layer rulers, a Blend tool, and a transparent fill bucket

Limner v0.7.2: Per-layer rulers, a Blend tool, and a transparent fill bucket

This release adds Clip Studio style per-layer rulers for cleaner inking, a one-tap
Blend tool on the tool strip, and a transparent mode for the paint bucket. It also
imports animated GIFs into Animation, tidies the tool-options bar, and reorders the
tool strip to the tools you reach for most. Illustration, Vector, and Animation all
work exactly as before, and your existing files open as they always have.

New

• Per-layer special rulers. Attach a ruler (linear, parallel, radial, or
  concentric) to a specific layer, so each layer can keep its own and your strokes
  rail to it. An All Layers option lets a stroke snap to any layer's ruler, layers
  that carry a ruler show a small badge in the Layers panel (right-click it to
  manage), and rulers are saved with the document. Toggle snapping from View ▸ Snap
  to Special Ruler.
• Blend tool. A single Blend tool now sits on the tool strip beside Brush and
  Eraser. It smears or softens with the active brush from the Brush picker's Blend
  folder, the brush deciding whether it smudges or blurs, so blending is one tap
  away.
• Transparent fill. The paint bucket can now clear a region to transparency
  instead of filling it with colour. Turn on Erase on the Fill options bar (the same
  transparent-paint toggle the Brush uses) and click to erase a matched area.
• Animated GIF import. Bring an animated GIF into Animation as ready-made
  frames.
• Rulers and guides in the Layers panel. Rulers and guides now appear as their
  own rows in the Layers panel, so you can see and delete them at a glance.
• Shared animation paper. Animation frames can share one paper layer, with a
  toggle for transparent paper.

Improved

• Per-tool brush memory. The Brush and the Blend tool each remember the last
  library brush you used, and the picker follows you to that brush's folder, so
  swapping between painting and blending keeps each tool on its own brush.
• Most-used tool order. The default tool strip is reordered roughly most-used to
  least-used; Window ▸ Reset Tool Strip Layout restores it if you have customised
  yours.
• Tidier tool-options bar. Undo and redo sit centred on the bar and slide aside
  only when a tool's controls need the room, each slider's value reads cleanly
  inside the bar, and the bar lays out correctly at every window width.
• Smoother vector pen. Double-click the end of an open line to keep drawing it,
  and the live outline preview is cleaner.

Fixed

• The slider value numbers in the tool-options bar no longer hang past the bar's
  bottom edge, and undo/redo no longer overlap the sliders on a narrow window.
• Switching tools while a ruler is active keeps the active layer's ruler in sync.

Notes

• Every feature is available in this build.
• Older Limner files open normally; documents that use per-layer rulers save in the
  latest format and still open in this and later builds.
• Windows, signed installer. Update from the in-app prompt or under the Help menu.