DHC green accent, Legacy colors rename, progress dialog padding

Address review feedback:
- Dark High Contrast: use green (colorPrimary) for colorAccent/colorSecondary
  so section headers (App Settings / Route Settings) and switch toggles are
  green, matching the green identity (and the theme's green picker swatch),
  instead of the previously confusing blue. Blue (colorTertiary / route
  proxy / links) stays reserved for links.
- Rename the picker's 'Classic colors...' entry to 'Legacy colors...'.
- Add top padding + spacing above the connection-test progress dialog's
  loading circle so it isn't flush against the dialog's top edge.

Verified on Android (DHC: green header + green toggle).

Author: hawkff

app/src/main/res/layout/layout_progress_list.xml

@@ -3,13 +3,16 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    android:paddingTop="24dp"
+    android:paddingBottom="8dp">
 
     <com.google.android.material.progressindicator.CircularProgressIndicator
         android:id="@+id/progress_circular"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
+        android:layout_marginBottom="12dp"
         android:indeterminate="true"
         app:indicatorColor="?colorPrimary" />
 

app/src/main/res/values-night/themes.xml

@@ -97,7 +97,7 @@
         <item name="colorPrimary">@color/dhc_primary</item>
         <item name="appBarBackgroundColor">@color/dhc_background</item>
         <item name="colorPrimaryDark">@color/dhc_primary_dark</item>
-        <item name="colorAccent">@color/dhc_accent</item>
+        <item name="colorAccent">@color/dhc_primary</item>
         <item name="colorOnPrimary">@color/dhc_on_primary</item>
         <item name="colorMaterial100">@color/dhc_100</item>
         <item name="colorMaterial300">@color/dhc_300</item>
@@ -117,7 +117,7 @@
         <item name="tabIndicatorColor">@color/dhc_primary</item>
         <item name="colorPrimaryContainer">@color/dhc_container</item>
         <item name="colorOnPrimaryContainer">@color/dhc_on_surface</item>
-        <item name="colorSecondary">@color/dhc_accent</item>
+        <item name="colorSecondary">@color/dhc_primary</item>
         <item name="colorSecondaryContainer">@color/dhc_container</item>
         <item name="colorOnSecondaryContainer">@color/dhc_on_surface</item>
         <item name="colorTertiary">@color/dhc_blue</item>
@@ -127,8 +127,8 @@
         <item name="colorOnSurfaceVariant">@color/dhc_on_surface_variant</item>
         <item name="colorOutline">@color/dhc_outline</item>
         <item name="colorOutlineVariant">@color/dhc_outline_variant</item>
-        <item name="accentOrTextSecondary">@color/dhc_accent</item>
-        <item name="accentOrTextPrimary">@color/dhc_accent</item>
+        <item name="accentOrTextSecondary">@color/dhc_primary</item>
+        <item name="accentOrTextPrimary">@color/dhc_primary</item>
         <item name="primaryOrTextSecondary">@color/dhc_primary</item>
         <item name="primaryOrTextPrimary">@color/dhc_primary</item>
         <item name="protocolColor">@color/dhc_green</item>
@@ -421,7 +421,7 @@
         <item name="colorPrimary">@color/dhc_primary</item>
         <item name="appBarBackgroundColor">@color/dhc_background</item>
         <item name="colorPrimaryDark">@color/dhc_primary_dark</item>
-        <item name="colorAccent">@color/dhc_accent</item>
+        <item name="colorAccent">@color/dhc_primary</item>
         <item name="colorOnPrimary">@color/dhc_on_primary</item>
         <item name="colorMaterial100">@color/dhc_100</item>
         <item name="colorMaterial300">@color/dhc_300</item>
@@ -433,7 +433,7 @@
         <item name="colorOnBackground">@color/dhc_on_surface</item>
         <item name="colorPrimaryContainer">@color/dhc_container</item>
         <item name="colorOnPrimaryContainer">@color/dhc_on_surface</item>
-        <item name="colorSecondary">@color/dhc_accent</item>
+        <item name="colorSecondary">@color/dhc_primary</item>
         <item name="colorSecondaryContainer">@color/dhc_container</item>
         <item name="colorOnSecondaryContainer">@color/dhc_on_surface</item>
         <item name="colorTertiary">@color/dhc_blue</item>

app/src/main/res/values/strings.xml

@@ -21,7 +21,7 @@
     <string name="theme_monokai">Monokai</string>
     <string name="theme_ayu">Ayu</string>
     <string name="theme_catppuccin">Catppuccin</string>
-    <string name="theme_classic_colors">Classic colors…</string>
+    <string name="theme_classic_colors">Legacy colors…</string>
     <string name="theme_classic_color_swatch">Color theme %1$d</string>
     <string name="document">Document</string>
     <string name="group_default">Ungrouped</string>

app/src/main/res/values/themes.xml

@@ -818,7 +818,7 @@
         <item name="colorPrimary">@color/dhc_primary</item>
         <item name="appBarBackgroundColor">@color/dhc_background</item>
         <item name="colorPrimaryDark">@color/dhc_primary_dark</item>
-        <item name="colorAccent">@color/dhc_accent</item>
+        <item name="colorAccent">@color/dhc_primary</item>
         <item name="colorOnPrimary">@color/dhc_on_primary</item>
         <item name="colorMaterial100">@color/dhc_100</item>
         <item name="colorMaterial300">@color/dhc_300</item>
@@ -845,7 +845,7 @@
         <!-- M3 container/variant roles on the dark canvas. -->
         <item name="colorPrimaryContainer">@color/dhc_container</item>
         <item name="colorOnPrimaryContainer">@color/dhc_on_surface</item>
-        <item name="colorSecondary">@color/dhc_accent</item>
+        <item name="colorSecondary">@color/dhc_primary</item>
         <item name="colorSecondaryContainer">@color/dhc_container</item>
         <item name="colorOnSecondaryContainer">@color/dhc_on_surface</item>
         <item name="colorTertiary">@color/dhc_blue</item>
@@ -858,8 +858,8 @@
 
         <!-- Semantic colors: green action accent reads on black, so primary text
              accents use it; status uses GitHub-style green/red/yellow. -->
-        <item name="accentOrTextSecondary">@color/dhc_accent</item>
-        <item name="accentOrTextPrimary">@color/dhc_accent</item>
+        <item name="accentOrTextSecondary">@color/dhc_primary</item>
+        <item name="accentOrTextPrimary">@color/dhc_primary</item>
         <item name="primaryOrTextSecondary">@color/dhc_primary</item>
         <item name="primaryOrTextPrimary">@color/dhc_primary</item>
         <item name="protocolColor">@color/dhc_green</item>
@@ -1211,7 +1211,7 @@
         <item name="colorPrimary">@color/dhc_primary</item>
         <item name="appBarBackgroundColor">@color/dhc_background</item>
         <item name="colorPrimaryDark">@color/dhc_primary_dark</item>
-        <item name="colorAccent">@color/dhc_accent</item>
+        <item name="colorAccent">@color/dhc_primary</item>
         <item name="colorOnPrimary">@color/dhc_on_primary</item>
         <item name="colorMaterial100">@color/dhc_100</item>
         <item name="colorMaterial300">@color/dhc_300</item>
@@ -1223,7 +1223,7 @@
         <item name="colorOnBackground">@color/dhc_on_surface</item>
         <item name="colorPrimaryContainer">@color/dhc_container</item>
         <item name="colorOnPrimaryContainer">@color/dhc_on_surface</item>
-        <item name="colorSecondary">@color/dhc_accent</item>
+        <item name="colorSecondary">@color/dhc_primary</item>
         <item name="colorSecondaryContainer">@color/dhc_container</item>
         <item name="colorOnSecondaryContainer">@color/dhc_on_surface</item>
         <item name="colorTertiary">@color/dhc_blue</item>