Use VS text style resources for font sizes

https://msdn.microsoft.com/en-us/library/mt162316.aspx

Author: donokuda

src/GitHub.VisualStudio/GitHub.VisualStudio.csproj

@@ -397,10 +397,6 @@
     <Page Include="SharedDictionary.xaml">
       <Generator>MSBuild:Compile</Generator>
     </Page>
-    <Page Include="Styles\Typography.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
     <Page Include="Styles\VsBrush.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>

src/GitHub.VisualStudio/SharedDictionary.xaml

@@ -12,7 +12,6 @@
     <cache:SharedDictionaryManager Source="pack://application:,,,/GitHub.VisualStudio;component/Styles/Buttons.xaml" />
     <cache:SharedDictionaryManager Source="pack://application:,,,/GitHub.VisualStudio;component/Styles/GitHubTabControl.xaml" />
     <cache:SharedDictionaryManager Source="pack://application:,,,/GitHub.VisualStudio;component/Styles/TextBlocks.xaml" />
-    <cache:SharedDictionaryManager Source="pack://application:,,,/GitHub.VisualStudio;component/Styles/Typography.xaml" />
   </ResourceDictionary.MergedDictionaries>
 
   <Style x:Key="VSStyledButton" BasedOn="{StaticResource VsButtonStyleKey}" TargetType="{x:Type Button}" />

src/GitHub.VisualStudio/Styles/Typography.xaml

@@ -5,6 +5,7 @@
                     xmlns:local="clr-namespace:GitHub.VisualStudio.UI.Views"
                     xmlns:models="clr-namespace:GitHub.Models;assembly=GitHub.Exports"
                     xmlns:viewmodels="clr-namespace:GitHub.ViewModels;assembly=GitHub.Exports.Reactive"
+                    xmlns:vsui="clr-namespace:Microsoft.VisualStudio.Shell;assembly=Microsoft.VisualStudio.Shell.14.0"
                     xmlns:ui="clr-namespace:GitHub.UI;assembly=GitHub.UI">
 
   <ResourceDictionary.MergedDictionaries>
@@ -54,10 +55,9 @@
                  Grid.Column="1"
                  HorizontalAlignment="Left"
                  VerticalAlignment="Top"
-                 FontFamily="Segoe UI"
-                 FontSize="{DynamicResource GitHubVsListTitleFontSize}"
                  Foreground="{DynamicResource GitHubVsToolWindowText}"
                  Margin="0,-3,5,0"
+                 Style="{DynamicResource {x:Static vsui:VsResourceKeys.TextBlockEnvironment122PercentFontSizeStyleKey}}"
                  Text="{Binding Title}"
                  ToolTip="{Binding Title}"
                  TextTrimming="CharacterEllipsis" />

src/GitHub.VisualStudio/UI/Views/Controls/PullRequestListItem.xaml

@@ -7,6 +7,7 @@
                                       xmlns:local="clr-namespace:GitHub.VisualStudio.UI.Views"
                                       xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                                       xmlns:sampleData="clr-namespace:GitHub.SampleData;assembly=GitHub.App"
+                                      xmlns:vsui="clr-namespace:Microsoft.VisualStudio.Shell;assembly=Microsoft.VisualStudio.Shell.14.0"
                                       xmlns:ui="clr-namespace:GitHub.UI;assembly=GitHub.UI"
                                   Background="{DynamicResource GitHubVsToolWindowBackground}"
                                   DataContext="{Binding ViewModel}"
@@ -341,7 +342,7 @@
                                        ToolTip="I am an example commit message"
                                        VerticalAlignment="Top"
                                        Foreground="{DynamicResource GitHubVsToolWindowText}"
-                                       FontSize="{StaticResource GitHubVsListItemTitleFontSize}"
+                                       Style="{DynamicResource {x:Static vsui:VsResourceKeys.TextBlockEnvironment122PercentFontSizeStyleKey}}"
                                        Margin="10,-3,5,0"
                                        Grid.Column="1"
                                        Grid.Row="0" />