Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kiconthemes/source/tests/kiconeffecttest.cpp

@@ -0,0 +1,150 @@
+#include "kiconeffecttest.h"
+
+#include <kiconeffect.h>
+#include <kiconloader.h>
+
+#include <KColorButton>
+
+#include <QApplication>
+#include <QGridLayout>
+#include <QLabel>
+#include <QSlider>
+
+KIconEffectTestWidget::KIconEffectTestWidget(QWidget *parent)
+    : QScrollArea(parent)
+{
+    setAttribute(Qt::WA_DeleteOnClose);
+    QWidget *frame = new QWidget(this);
+    setWidget(frame);
+    setWidgetResizable(true);
+    QGridLayout *layout = new QGridLayout(frame);
+    layout->setColumnStretch(1, 1);
+
+    img = QImage(KIconLoader::global()->iconPath(QStringLiteral("application-x-cd-image"), -128));
+    QImage tmp;
+    QSlider *slider;
+
+    tmp = img;
+    KIconEffect::toGray(tmp, 0.0);
+    lbl[0] = new QLabel(frame);
+    lbl[0]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[0], 0, 0, 3, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Grayscale"), frame), 0, 1);
+    slider = new QSlider(Qt::Horizontal, frame);
+    slider->setRange(0, 100);
+    connect(slider, &QAbstractSlider::valueChanged, this, &KIconEffectTestWidget::slotGray);
+    layout->addWidget(slider, 1, 1);
+
+    tmp = img;
+    KIconEffect::toMonochrome(tmp, Qt::black, Qt::white, 0.0);
+    lbl[1] = new QLabel(frame);
+    lbl[1]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[1], 4, 0, 3, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Monochrome"), frame), 4, 1);
+    slider = new QSlider(Qt::Horizontal, frame);
+    slider->setRange(0, 100);
+    connect(slider, &QAbstractSlider::valueChanged, this, &KIconEffectTestWidget::slotMonochrome);
+    layout->addWidget(slider, 5, 1);
+
+    tmp = img;
+    KIconEffect::deSaturate(tmp, 0.0);
+    lbl[2] = new QLabel(frame);
+    lbl[2]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[2], 8, 0, 3, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Desaturate"), frame), 8, 1);
+    slider = new QSlider(Qt::Horizontal, frame);
+    slider->setRange(0, 100);
+    connect(slider, &QAbstractSlider::valueChanged, this, &KIconEffectTestWidget::slotDesaturate);
+    layout->addWidget(slider, 9, 1);
+
+    tmp = img;
+    KIconEffect::toGamma(tmp, 0.0);
+    lbl[3] = new QLabel(frame);
+    lbl[3]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[3], 12, 0, 3, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Gamma"), frame), 12, 1);
+    slider = new QSlider(Qt::Horizontal, frame);
+    slider->setRange(0, 100);
+    connect(slider, &QAbstractSlider::valueChanged, this, &KIconEffectTestWidget::slotGamma);
+    layout->addWidget(slider, 13, 1);
+
+    tmp = img;
+    colorizedColor = Qt::blue;
+    colorizedValue = 0.0;
+    KIconEffect::colorize(tmp, colorizedColor, colorizedValue);
+    lbl[4] = new QLabel(frame);
+    lbl[4]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[4], 16, 0, 4, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Colorize"), frame), 16, 1);
+    slider = new QSlider(Qt::Horizontal, frame);
+    slider->setRange(0, 100);
+    connect(slider, &QAbstractSlider::valueChanged, this, &KIconEffectTestWidget::slotColorizeValue);
+    layout->addWidget(slider, 17, 1);
+    KColorButton *btn = new KColorButton(colorizedColor, frame);
+    connect(btn, &KColorButton::changed, this, &KIconEffectTestWidget::slotColorizeColor);
+    layout->addWidget(btn, 18, 1);
+
+    tmp = img;
+    KIconEffect::semiTransparent(tmp);
+    lbl[5] = new QLabel(frame);
+    lbl[5]->setPixmap(QPixmap::fromImage(tmp));
+    layout->addWidget(lbl[5], 20, 0, 3, 1);
+    layout->addWidget(new QLabel(QStringLiteral("Semitransparent"), frame), 20, 1);
+
+    layout->setRowStretch(21, 1);
+    frame->resize(frame->sizeHint());
+}
+
+void KIconEffectTestWidget::slotGray(int value)
+{
+    QImage tmp(img);
+    KIconEffect::toGray(tmp, value * 0.01);
+    lbl[0]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+void KIconEffectTestWidget::slotMonochrome(int value)
+{
+    QImage tmp(img);
+    KIconEffect::toMonochrome(tmp, Qt::black, Qt::white, value * 0.01);
+    lbl[1]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+void KIconEffectTestWidget::slotDesaturate(int value)
+{
+    QImage tmp(img);
+    KIconEffect::deSaturate(tmp, value * 0.01);
+    lbl[2]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+void KIconEffectTestWidget::slotGamma(int value)
+{
+    QImage tmp(img);
+    KIconEffect::toGamma(tmp, value * 0.01);
+    lbl[3]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+void KIconEffectTestWidget::slotColorizeColor(const QColor &c)
+{
+    colorizedColor = c;
+    QImage tmp(img);
+    KIconEffect::colorize(tmp, colorizedColor, colorizedValue);
+    lbl[4]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+void KIconEffectTestWidget::slotColorizeValue(int value)
+{
+    colorizedValue = value * 0.01f;
+    QImage tmp(img);
+    KIconEffect::colorize(tmp, colorizedColor, colorizedValue);
+    lbl[4]->setPixmap(QPixmap::fromImage(tmp));
+}
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    KIconEffectTestWidget *w = new KIconEffectTestWidget;
+    w->show();
+    return app.exec();
+}
+
+#include "moc_kiconeffecttest.cpp"