ux: style of commit message picker button

src/Resources/Icons.axaml

@@ -14,7 +14,6 @@
   <StreamGeometry x:Key="Icons.Clone">M1280 704c0 141-115 256-256 256H288C129 960 0 831 0 672c0-126 80-232 192-272A327 327 0 01192 384c0-177 143-320 320-320 119 0 222 64 277 160C820 204 857 192 896 192c106 0 192 86 192 192 0 24-5 48-13 69C1192 477 1280 580 1280 704zm-493-128H656V352c0-18-14-32-32-32h-96c-18 0-32 14-32 32v224h-131c-29 0-43 34-23 55l211 211c12 12 33 12 45 0l211-211c20-20 6-55-23-55z</StreamGeometry>
   <StreamGeometry x:Key="Icons.Code">M853 102H171C133 102 102 133 102 171v683C102 891 133 922 171 922h683C891 922 922 891 922 853V171C922 133 891 102 853 102zM390 600l-48 48L205 512l137-137 48 48L301 512l88 88zM465 819l-66-18L559 205l66 18L465 819zm218-171L634 600 723 512l-88-88 48-48L819 512 683 649z</StreamGeometry>
   <StreamGeometry x:Key="Icons.Commit">M796 471A292 292 0 00512 256a293 293 0 00-284 215H0v144h228A293 293 0 00512 832a291 291 0 00284-217H1024V471h-228M512 688A146 146 0 01366 544A145 145 0 01512 400c80 0 146 63 146 144A146 146 0 01512 688</StreamGeometry>
-  <StreamGeometry x:Key="Icons.CommitMessage">M796 561a5 5 0 014 7l-39 90a5 5 0 004 7h100a5 5 0 014 8l-178 247a5 5 0 01-9-4l32-148a5 5 0 00-5-6h-89a5 5 0 01-4-7l86-191a5 5 0 014-3h88zM731 122a73 73 0 0173 73v318a54 54 0 00-8-1h-88a54 54 0 00-49 32l-86 191a54 54 0 00-5 22l0 4a54 54 0 0053 50h35L636 902H244a73 73 0 01-73-73V195a73 73 0 0173-73h488zm-219 366h-195v73h195v-73zm146-146H317v73h341v-73z</StreamGeometry>
   <StreamGeometry x:Key="Icons.Compare">M645 448l64 64 220-221L704 64l-64 64 115 115H128v90h628zM375 576l-64-64-220 224L314 960l64-64-116-115H896v-90H262z</StreamGeometry>
   <StreamGeometry x:Key="Icons.Conflict">M608 0q48 0 88 23t63 63 23 87v70h55q35 0 67 14t57 38 38 57 14 67V831q0 34-14 66t-38 57-57 38-67 13H426q-34 0-66-13t-57-38-38-57-14-66v-70h-56q-34 0-66-14t-57-38-38-57-13-67V174q0-47 23-87T109 23 196 0h412m175 244H426q-46 0-86 22T278 328t-26 85v348H608q47 0 86-22t63-62 25-85l1-348m-269 318q18 0 31 13t13 31-13 31-31 13-31-13-13-31 13-31 31-13m0-212q13 0 22 9t11 22v125q0 14-9 23t-22 10-23-7-11-22l-1-126q0-13 10-23t23-10z</StreamGeometry>
   <StreamGeometry x:Key="Icons.Copy">M896 811l-128 0c-23 0-43-19-43-43 0-23 19-43 43-43l107 0c13 0 21-9 21-21L896 107c0-13-9-21-21-21L448 85c-13 0-21 9-21 21l0 21c0 23-19 43-43 43-23 0-43-19-43-43L341 85c0-47 38-85 85-85l469 0c47 0 85 38 85 85l0 640C981 772 943 811 896 811zM683 299l0 640c0 47-38 85-85 85L128 1024c-47 0-85-38-85-85L43 299c0-47 38-85 85-85l469 0C644 213 683 252 683 299zM576 299 149 299c-13 0-21 9-21 21l0 597c0 13 9 21 21 21l427 0c13 0 21-9 21-21L597 320C597 307 589 299 576 299z</StreamGeometry>

src/Resources/Styles.axaml

@@ -455,6 +455,21 @@
     <Setter Property="Fill" Value="{DynamicResource Brush.FG2}"/>
   </Style>
 
+  <Style Selector="Button.no_border">
+    <Setter Property="BorderThickness" Value="0"/>
+    <Setter Property="Background" Value="Transparent"/>
+    <Setter Property="VerticalAlignment" Value="Center"/>
+  </Style>
+  <Style Selector="Button.no_border /template/ ContentPresenter#PART_ContentPresenter">
+    <Setter Property="Background" Value="Transparent"/>
+  </Style>
+  <Style Selector="Button.no_border:pointerover Path">
+    <Setter Property="Fill" Value="{DynamicResource Brush.Accent}"/>
+  </Style>
+  <Style Selector="Button.no_border:pressed">
+    <Setter Property="RenderTransform" Value="scale(1.0)"/>
+  </Style>
+
   <Style Selector="Button.flat">
     <Setter Property="BorderThickness" Value="1"/>
     <Setter Property="BorderBrush" Value="{DynamicResource Brush.Border2}"/>

src/Views/WorkingCopy.axaml

@@ -175,13 +175,13 @@
       <!-- Commit Options -->
       <Grid Grid.Row="3" Margin="0,6,0,0" ColumnDefinitions="Auto,Auto,Auto,*,Auto,Auto,Auto">
         <Button Grid.Column="0"
-                Classes="icon_button"
+                Classes="no_border"
                 Margin="4,0,0,0" Padding="0"
                 Click="OnOpenCommitMessagePicker">
-          <StackPanel Orientation="Horizontal">
+          <Grid ColumnDefinitions="Auto,*">
-            <Path Width="14" Height="14" Data="{StaticResource Icons.CommitMessage}"/>
+            <Path Grid.Column="0" Width="12" Height="12" Data="{StaticResource Icons.Menu}"/>
-            <TextBlock Margin="4,0,0,0" Text="{DynamicResource Text.WorkingCopy.CommitMessageHelper}"/>
+            <TextBlock Grid.Column="1" Margin="8,0,0,0" Text="{DynamicResource Text.WorkingCopy.CommitMessageHelper}"/>
-          </StackPanel>
+          </Grid>
         </Button>
 
         <CheckBox Grid.Column="1"