0.1.7 — Tcl/Tk 9 scroll support

Fixed

• Scrolling works again on Tcl/Tk 9. A trackpad, Magic Mouse, or Magic Trackpad reports precise scroll deltas, which Tk 9 delivers as a different event than a mouse wheel. Every scrolling widget listened only for the wheel, so on a Mac running Tk 9 — a Homebrew or conda Python, or any build linked against Tk 9 — scrolling did nothing at all in ScrollView, ListView, Tree, TextArea, CodeEditor, Gallery, and the Tabs strip. Reported against Python 3.14.6 with Tcl/Tk 9.0.3; the same code runs correctly on Python 3.13 only because it ships Tk 8.6. (#372)
• A wheel notch scrolls by one step on Tk 9, not by a hundred and twenty. Tk 9 normalized wheel deltas across platforms; on macOS the old reading scrolled a full view per notch.
• Wheel scrolling works on Linux with Tk 9. Tk 9 stopped delivering the X11 wheel buttons to applications, and the affected widgets listened for nothing else there.
• A wheel notch scrolls a ScrollView consistently across platforms. On Linux one notch moved the view ten times as far as it did elsewhere.
• A widget detached across a theme change is recolored when you attach it back. Widgets that paint themselves — charts, gauges, and the other canvas-drawn widgets — skip a theme change while they are off screen and repaint when they next become visible. Returning one with attach() was not treated as becoming visible, so a chart hidden with detach() across a theme toggle came back with the old palette and kept it until something else forced a repaint. Showing a page or expanding an accordion section already worked.

What's Changed

• fix(theme): recolor a widget re-attached across a theme change by @israel-dryer in #374
• fix(scroll): support the Tk 9 scroll-event contract by @israel-dryer in #373

Full Changelog: v0.1.6...v0.1.7