Runtime inversion is not a theming system: it rotates hue, breaks duotone art
and mishandles alpha, and a QPixmap snapshot cannot follow a palette change.
Redraw the top-level UI glyph set on a 24x24 grid with `currentColor` as the
paint token, drop Inkscape/Sodipodi cruft, and delete the icons whose metaphor
was duplicated (cogwheel/gear -> settings, scale_balanced -> scales,
update.png -> reload).
Load the glyphs through `loadThemedIcon` so the engine resolves the token from
the palette on every request, and let `themePixmap` use the same resolution for
one-shot pixmaps. `loadColorAdjustedPixmap` is gone; every caller now keeps a
QIcon, which `SettingsButtonWidget::setButtonIcon` accepts instead of a QPixmap.
Content art (mana, counters, countries) keeps its authored colors.
Add a render test covering aspect ratio, palette flips, icon modes and
high-DPI pixmaps.
* [DeckEditor] Deck List History Manager.
Took 23 minutes
Took 17 minutes
* Add icons.
Took 2 minutes
Took 3 seconds
* Small fixes.
Took 12 minutes
* Style lint.
Took 48 seconds
* tr() things.
Took 5 minutes
* Add tooltips for buttons.
Took 3 minutes
* Add explanation label to history.
Took 3 minutes
* Refactor to .cpp, delegate undo/redo to manager, don't return memento
Took 8 minutes
* Clear history when setting deck.
Took 6 minutes
* Move to value based stacks.
Took 52 seconds
* Default constructor.
Took 31 seconds
Took 3 minutes
Took 4 minutes
Took 2 minutes
* Have it listen to deck editor additions.
Took 18 minutes
* Don't connect buttons *and* actions.
Took 2 minutes
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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
