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Green Theme

The Green theme delivers a flat modern UI represented by two color variations – Light and Dark which are based on green accents.

Jump to the following topics to learn about the specifics of the theme's palette and features.

Default Theme Colors

Below you can find the differences between the two color variations. Every brush has relevant HEX value in the corresponding color variation.

Color name Light Dark (default)
Colors, which are same in the two palettes
StrongColor #FF646464
ValidationColor #FFE60000
FixedColor #FFFFFFFF
ReadOnlyBackgroundColor #00FFFFFF
Colors, which are different in the two palettes
AccentHighColor #FF4FA520
AccentLowColor #FF008406
SemiAccentLowColor #59008406
MouseOverColor #FF8EBC00
MainColor #FFF1F1F1
PrimaryColor #FFE8E8E8
AlternativeColor #FFE0E0E0
MarkerColor #FF000000
BasicColor #FF999999
SelectedColor #FF353535
LowColor #FF8D8D8D
ComplementaryColor #FFCACACA

Default Theme Brushes

Below you can find more details about each brush and where it is usually applied.

Common Brushes

  • StrongBrush—Gray by default and it is mainly used for filling paths in elements when they are in Normal state.
  • ValidatonBrush—Red by default and it is used for validation where such is applicable in our controls.
  • FixedBrush—White by default and it is the main color for text or paths which are over elements with validation background.

Accent Brushes

  • AccentHighBrush—A green brush.
  • AccentLowBrush—A slightly darker/lighter (depends on color variation) than the previous green brush.
  • SemiAccentLowBrush—The same as AccentLowBrush but with 35% opacity.
  • MouseOverBrush—Used as a background or border brush of controls or elements when they are in MouseOver state.

Foreground Brushes

  • MarkerBrush—The default brush used as foreground color.
  • SelectedBrush—Used for paths’ fill in elements that are in MouseOver, Pressed or Selected state.

Background Brushes

  • MainBrush—Used as background of controls with direct input such as TextBox, PasswordBox, RadMaskedInput, Editable RadComboBox, RadAutoCompleteBox. Also, used as main background of elements that has different content with unpredictable background.
  • PrimaryBrush—Used as a background of controls when in their Normal state, excluding controls with direct input.
  • AlternativeBrush—Used as an alternative background – i.e. for popups or where we want to distinguish one element from another.
  • HighBrush—Used as a background in RadMenu and RadTimeline.
  • ComplementaryBrush—Used as a background in RadRadialMenu and RadScheduleView.
  • ReadOnlyBackgroundBrush—Used as a background of controls in their ReadOnly state. Its default value is Transparent.

Border Brushes

  • BasicBrush—Used as a border brush of controls in their Normal state.
  • LowBrush—Used as a border brush of controls in their ReadOnly state.

Theme brushes preview

Green Theme Image 02

Changing Palette Colors

The Green theme provides dynamic change of the palette colors responsible for the brushes used in the controls. Their defaults are stated above. This mechanism is used to modify the color variation of the theme.

The general naming convention is: GreenPalette.Palette.[name]Color is responsible for [name]Brush – e.g. GreenPalette.Palette.AccentHighColor sets the color for telerik:GreenResource ResourceKey=AccentHighBrush

Changing the colors can be achieved in code behind.

Setting palette colors

GreenPalette.Palette.AccentHighColor = Color.FromRgb(255, 0, 0); 

Changing Theme Variation

The Green theme comes with two built-in colro variations:

The ColorVariation enumeration that determines which color variation should be used

/// <summary> 
/// Represents theme color variations. 
/// </summary> 
public enum ColorVariation 
    /// <summary> 
    /// Represents Dark Green theme palette. 
    /// </summary> 
    /// <summary> 
    /// Represents Light Green theme palette. 
    /// </summary> 

The Dark color variation of the theme is designed with a dark background in mind. It is recommended to use such a background in your application when choosing it.

Light and Dark color variations demonstrated with RadCalendar

Green Theme Image 01

You can switch between the color variations by calling the LoadPreset method as shown below:

Changing the color variation of the theme

//default color variation 
//light color variation 
//default color variation 
//light color variation 

Changing Font Properties

When using the Green Theme you can dynamically change the FontSize and FontFamily properties of all components in the application.

The FontSize and FontFamily properties are public so you can easily modify the theme resources at one single point. The most commonly used font size in the theme is named FontSize and its default value is 12. Bigger font sizes are used for headers and footers while smaller ones are used inside complex controls such as RadRibbonView, RadGauge, RadGanttView, etc. As for the FontFamily resource - its default value is Segoe UI.

Please note that for complex scenarios we strongly recommend setting the FontSize property only initially before the application is initialized. Also, we recommend values between 11px and 19px for it.

A list with all the available FontSize and FontFamily options with their default values follows:

Default FontFamily and FontSize values

GreenPalette.Palette.FontSizeXS = 10; 
GreenPalette.Palette.FontSizeS = 11;  
GreenPalette.Palette.FontSize = 12; 
GreenPalette.Palette.FontSizeL = 13; 
GreenPalette.Palette.FontSizeXL = 14;  
GreenPalette.Palette.FontFamily = new FontFamily("Segoe UI"); 
GreenPalette.Palette.FontSizeXS = 10 
GreenPalette.Palette.FontSizeS = 11 
GreenPalette.Palette.FontSize = 12 
GreenPalette.Palette.FontSizeL = 13 
GreenPalette.Palette.FontSizeXL = 14 
GreenPalette.Palette.FontFamily = New FontFamily("Segoe UI"); 

More details regarding the rarely used font sizes can be found below:

  • GreenPalette.Palette.FontSizeXS is used in:

    • TimeBar's SelectionRangeStyle in Telerik.Windows.Controls.DataVisualization
    • Map’s Scale and MouseLocationIndicator in Telerik.Windows.Controls.DataVisualization
    • AggregateResultsList, GridViewHeaderCell and GridViewGroupPanel in Telerik.Windows.Controls.GridView
  • GreenPalette.Palette.FontSizeS is used in:

    • ChartBaseStyle and TrackBallInfoControlStyle in Telerik.Windows.Controls.Chart.xaml
    • HorizontalBulletGraphStyle and VerticalBullerGraphStyle in Telerik.Windows.Controls.DataVisualization
    • TimeBar's ItemControlStyle in Telerik.Windows.Controls.DataVisualization
    • RibbonView’s GroupChromeStyle in Telerik.Windows.Controls.RibbonView
    • GanttView's EventContainerStyle in Telerik.Windows.Controls.GanntView
    • ScheduleView TimeRulerItems' styles in Telerik.Windows.Controls.ScheduleView
    • DiagramRulerStyle in Telerik.Windows.Controls.Diagrams.Extensions.xaml
  • GreenPalette.Palette.FontSizeL is used in:

    • GanttView's GanttDragResizeVisualCueTemplate in Telerik.Windows.Controls.GanntView
    • ScheduleView TimeRulerGroupItems' and TimeRulerMonthViewGroupItem’s styles in Telerik.Windows.Controls.ScheduleView
  • GreenPalette.Palette.FontSizeXL is used in:

    • ScheduleView TimeRulerMonthViewItem’s styles in Telerik.Windows.Controls.ScheduleView

As the following example shows, you can change the default FontFamily from "Segoe UI" to "Comic Sans MS" and the FontSize from 12 to 14 on a click of a button:

The view of the example

     <telerik:RadCalendar x:Name="Calendar" Width="250" Height="250" Margin="4 10"/>  
     <telerik:RadButton x:Name="BtnChangeFontSize" 
                               Content="Change Font" 
                               HorizontalAlignment="Center" VerticalAlignment="Center"  
                               Click="OnButtonChangeFontSizeClick" /> 

Changing the FontSize and the FontFamily

private void OnButtonChangeFontSizeClick(object sender, RoutedEventArgs e) 
    GreenPalette.Palette.FontSize = 14; 
    GreenPalette.Palette.FontFamily = new FontFamily("Comic Sans MS"); 
Private Sub OnButtonChangeFontSizeClick(sender As Object, e As RoutedEventArgs) 
    GreenPalette.Palette.FontSize = 14 
    GreenPalette.Palette.FontFamily = New FontFamily("Comic Sans MS") 
End Sub 

Change in theme fonts

Green Theme Image 03

Changing Corner Radius

The Green theme also exposes an easy way to modify the corner radius of many elements in your application. You can use the following properties which are shown below with their default values:

Default CornerRadius values

GreenPalette.Palette.CornerRadius = new CornerRadius(1, 1, 1, 1); 
GreenPalette.Palette.CornerRadiusBottom = new CornerRadius(0, 0, 1, 1); 
GreenPalette.Palette.CornerRadiusLeft = new CornerRadius(1, 0, 0, 1); 
GreenPalette.Palette.CornerRadiusRight = new CornerRadius(0, 1, 1, 0); 
GreenPalette.Palette.CornerRadiusTop = new CornerRadius(1, 1, 0, 0); 
GreenPalette.Palette.CornerRadius = New CornerRadius(1, 1, 1, 1) 
GreenPalette.Palette.CornerRadiusBottom = New CornerRadius(0, 0, 1, 1) 
GreenPalette.Palette.CornerRadiusLeft = New CornerRadius(1, 0, 0, 1) 
GreenPalette.Palette.CornerRadiusRight = New CornerRadius(0, 1, 1, 0) 
GreenPalette.Palette.CornerRadiusTop = New CornerRadius(1, 1, 0, 0) 

The view of the example

     <telerik:RadCalendar x:Name="Calendar" Width="250" Height="250" Margin="4 10"/> 
     <telerik:RadComboBox x:Name="ComboBoxChangeCornerRadius" 
                          HorizontalAlignment="Center" /> 

Changing the CornerRadius

public MainWindow() 
    this.CornerRadiusComboBox.ItemsSource = Enumerable.Range(0, 10); 
private void ComboBoxChangeCornerRadius_SelectionChanged(object sender, RoutedEventArgs e) 
    var selectedCornerSize = sender as RadComboBox; 
    if (selectedCornerSize != null && selectedCornerSize.SelectedValue != null) 
        double selectedValue = Convert.ToDouble(selectedCornerSize.SelectedValue); 
        GreenPalette.Palette.CornerRadius = new CornerRadius(selectedValue, selectedValue, selectedValue, selectedValue); 
        GreenPalette.Palette.CornerRadiusBottom = new CornerRadius(0, 0, selectedValue, selectedValue); 
        GreenPalette.Palette.CornerRadiusLeft = new CornerRadius(selectedValue, 0, 0, selectedValue); 
        GreenPalette.Palette.CornerRadiusRight = new CornerRadius(0, selectedValue, selectedValue, 0); 
        GreenPalette.Palette.CornerRadiusTop = new CornerRadius(selectedValue, selectedValue, 0, 0);  
Public Sub New() 
    Me.CornerRadiusComboBox.ItemsSource = Enumerable.Range(0, 10) 
End Sub 
Private Sub ComboBoxChangeCornerRadius_SelectionChanged(sender As Object, e As RoutedEventArgs) 
    Dim selectedCornerSize = TryCast(sender, RadComboBox) 
    If selectedCornerSize IsNot Nothing AndAlso selectedCornerSize.SelectedValue IsNot Nothing Then 
        Dim selectedValue As Double = Convert.ToDouble(selectedCornerSize.SelectedValue) 
        GreenPalette.Palette.CornerRadius = New CornerRadius(selectedValue, selectedValue, selectedValue, selectedValue) 
        GreenPalette.Palette.CornerRadiusBottom = New CornerRadius(0, 0, selectedValue, selectedValue) 
        GreenPalette.Palette.CornerRadiusLeft = New CornerRadius(selectedValue, 0, 0, selectedValue) 
        GreenPalette.Palette.CornerRadiusRight = New CornerRadius(0, selectedValue, selectedValue, 0) 
        GreenPalette.Palette.CornerRadiusTop = New CornerRadius(selectedValue, selectedValue, 0, 0) 
    End If 
End Sub 

Changes in corner radius

Green Theme Image 04

Changing Opacity

If you need to change the opacity of disabled elements, you can easily do it by using the DisabledOpacity property of the GreenPalette as follows:

The view of the opacity

<telerik:RadCalendar x:Name="Calendar" Width="250" Height="250" Margin="4 10" IsEnabled="False"/> 

Changing the DisabledOpacity

GreenPalette.Palette.DisabledOpacity = 0.5; 
GreenPalette.Palette.DisabledOpacity = 0.5 

Changes in the disabled elements opacity

Green Theme Image 05

The same is applicable for the ReadOnly state of controls by using the exposed ReadOnlyOpacity property of GreenPalette. The default values are 0.2 for the DisabledOpacity and 1 for the ReadOnlyOpacity property.

The view of the example

<StackPanel Width="200" HorizontalAlignment="Center"> 
    <TextBox Text="TextBox" Margin="5" /> 
    <TextBox Text="Disabled TextBox" Margin="5" IsEnabled="False" /> 
    <TextBox Text="ReadOnly TextBox" Margin="5" IsReadOnly="True" /> 

Changing the opacity

GreenPalette.Palette.DisabledOpacity = 0.5; 
GreenPalette.Palette.ReadOnlyOpacity = 0.5; 
GreenPalette.Palette.DisabledOpacity = 0.5 
GreenPalette.Palette.ReadOnlyOpacity = 0.5 

Changes in the readonly elements opacity

Green Theme Image 06

Merging Modified Palette Resources With StyleManager Theming Approach

When modifying fonts, colors, or other resources from the GreenPalette and StyleManager is used as theming mechanism, the theme's ResourceDictionary needs to be merged in App.xaml file to apply the changes.

Merging the theme's ResourceDictionary in App.xaml


See Also

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