OmaPhoto 1.0.0: the Linux port of Compositor

A layered image editor for Linux and Omarchy, ported from Compositor
(github.com/robbietilton/Compositor), whose Swift source is its
specification. It reads and writes Compositor's .comp projects.

Packages for Ubuntu, Fedora and Arch come from the release workflow;
scripts/install/ holds one install script per distribution family,
and flake.nix serves NixOS.

Co-Authored-By: Claude <noreply@anthropic.com>

src/UI/ToolIcons.h

@@ -0,0 +1,16 @@
+#pragma once
+#include "Document/EditorSession+Model.h"
+#include <QColor>
+#include <QPainter>
+#include <QRectF>
+
+// The Marquee's and the Lasso's icons follow their kinds.
+enum class ToolIconKind { plain, ellipse, polygonal, eraser };
+
+// The tool rail's icons, drawn: SF Symbols have no twin.
+namespace ToolIcons {
+// Swift's icons sit in an 18 point square.
+inline constexpr int points = 18;
+// Paints the tool's icon into a square, in one colour.
+void paint(QPainter &painter, NavigationTool tool, QPointF origin, double side, const QColor &colour, ToolIconKind kind = ToolIconKind::plain);
+}