added global color constants for all the colors to be used

InnoLabProjektDektopApp/InnoLabProjektDektopApp/Styles/Styles.xaml

 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
 
+
+    <!-- Farben definieren -->
+    <Color x:Key="HIGHLIGHT_PRIMARY_COLOR">#ADD8E6</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+    <Color x:Key="HIGHLIGHT_SECONDARY_COLOR">#1B2736</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+    <Color x:Key="BACKGROUND_PRIMARY_COLOR">#272727</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+    <Color x:Key="BACKGROUND_SECONDARY_COLOR">#333436</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+    <Color x:Key="TEXT_PRIMARY_COLOR">#EEEEEE</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+    <Color x:Key="TEXT_SECONDARY_COLOR">#9E9E9E</Color>
+    <!-- Ersetze durch den exakten Farbwert -->
+
+    <!-- Optional: Farben als Brushes bereitstellen -->
+    <SolidColorBrush x:Key="HIGHLIGHT_PRIMARY_BRUSH" Color="{StaticResource HIGHLIGHT_PRIMARY_COLOR}" />
+    <SolidColorBrush x:Key="HIGHLIGHT_SECONDARY_BRUSH" Color="{StaticResource HIGHLIGHT_SECONDARY_COLOR}" />
+    <SolidColorBrush x:Key="BACKGROUND_PRIMARY_BRUSH" Color="{StaticResource BACKGROUND_PRIMARY_COLOR}" />
+    <SolidColorBrush x:Key="BACKGROUND_SECONDARY_BRUSH" Color="{StaticResource BACKGROUND_SECONDARY_COLOR}" />
+    <SolidColorBrush x:Key="TEXT_PRIMARY_BRUSH" Color="{StaticResource TEXT_PRIMARY_COLOR}" />
+    <SolidColorBrush x:Key="TEXT_SECONDARY_BRUSH" Color="{StaticResource TEXT_SECONDARY_COLOR}" />
+
     <Style TargetType="ToolTip">
         <Setter Property="Background" Value="LightYellow" />
         <Setter Property="Foreground" Value="Black" />