CLI: Don't allow theme selection for lower versions

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/Commands/ProjectCreationCommandBase.cs

@@ -103,18 +103,6 @@ public abstract class ProjectCreationCommandBase
             Logger.LogInformation("UI Framework: " + uiFramework);
         }
 
-        var theme = uiFramework == UiFramework.None ? (Theme?)null : GetThemeByTemplateOrNull(commandLineArgs, template);
-        if (theme.HasValue)
-        {
-            Logger.LogInformation("Theme: " + theme);
-        }
-
-        var themeStyle = theme.HasValue ? GetThemeStyleOrNull(commandLineArgs, theme.Value) : (ThemeStyle?)null;
-        if(themeStyle.HasValue) 
-        {
-            Logger.LogInformation("Theme Style: " + themeStyle);
-        }
-
         var publicWebSite = uiFramework != UiFramework.None && commandLineArgs.Options.ContainsKey(Options.PublicWebSite.Long);
         if (publicWebSite)
         {
@@ -210,6 +198,9 @@ public abstract class ProjectCreationCommandBase
         }
 
         commandLineArgs.Options.Add(CliConsts.Command, commandLineArgs.Command);
+        
+        var theme = uiFramework == UiFramework.None ? (Theme?)null : GetThemeByTemplateOrNull(commandLineArgs, template);
+        var themeStyle = theme.HasValue ? GetThemeStyleOrNull(commandLineArgs, theme.Value) : (ThemeStyle?)null;
 
         return new ProjectBuildArgs(
             solutionName,

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/TemplateProjectBuilder.cs

@@ -71,6 +71,8 @@ public class TemplateProjectBuilder : IProjectBuilder, ITransientDependency
             args.ExtraProperties.ContainsKey(NewCommand.Options.Preview.Long)
         );
 
+        ConfigureThemeOptions(args, templateFile.Version);
+
         DeveloperApiKeyResult apiKeyResult = null;
 
 #if DEBUG
@@ -207,4 +209,37 @@ public class TemplateProjectBuilder : IProjectBuilder, ITransientDependency
             return TemplateInfoProvider.Get(args.TemplateName);
         }
     }
+
+    private bool IsThemeOptionEnabled(ProjectBuildArgs args, string templateVersion)
+    {
+        var version = string.IsNullOrWhiteSpace(args.Version)
+            ? templateVersion
+            : args.Version;
+
+        if (!SemanticVersion.TryParse(version, out var semanticVersion))
+        {
+            return false;
+        }
+
+        return semanticVersion >= new SemanticVersion(6, 0, 0);
+    }
+
+    private void ConfigureThemeOptions(ProjectBuildArgs args, string templateVersion)
+    {
+        if (!IsThemeOptionEnabled(args, templateVersion))
+        {
+            args.Theme = null;
+            args.ThemeStyle = null;
+        }
+        
+        if (args.Theme.HasValue)
+        {
+            Logger.LogInformation("Theme: " + args.Theme);
+        }
+
+        if(args.ThemeStyle.HasValue) 
+        {
+            Logger.LogInformation("Theme Style: " + args.ThemeStyle);
+        }
+    }
 }