NOISSUE continue reshuffling the codebase

launcher/ui/ColorCache.cpp

@@ -0,0 +1,35 @@
+#include "ColorCache.h"
+
+
+/**
+ * Blend the color with the front color, adapting to the back color
+ */
+QColor ColorCache::blend(QColor color)
+{
+    if (Rainbow::luma(m_front) > Rainbow::luma(m_back))
+    {
+        // for dark color schemes, produce a fitting color first
+        color = Rainbow::tint(m_front, color, 0.5);
+    }
+    // adapt contrast
+    return Rainbow::mix(m_front, color, m_bias);
+}
+
+/**
+ * Blend the color with the back color
+ */
+QColor ColorCache::blendBackground(QColor color)
+{
+    // adapt contrast
+    return Rainbow::mix(m_back, color, m_bias);
+}
+
+void ColorCache::recolorAll()
+{
+    auto iter = m_colors.begin();
+    while(iter != m_colors.end())
+    {
+        iter->front = blend(iter->original);
+        iter->back = blendBackground(iter->original);
+    }
+}