Don't use custom font for autocompletion lists, and fix wrong editor font size when started on high DPI.

Discussion:

https://groups.google.com/g/innosetup/c/JrVZVkMqLWg

Projects/Src/IDE.MainForm.pas

@@ -756,8 +756,6 @@ end;
 function TMainForm.InitializeMemoBase(const Memo: TIDEScintEdit; const PopupMenu: TPopupMenu): TIDEScintEdit;
 begin
   Memo.Align := alClient;
-  Memo.AutoCompleteFontName := Font.Name;
-  Memo.AutoCompleteFontSize := Font.Size;
   Memo.Font.Name := GetPreferredMemoFont; { Default font only, see ReadConfig }
   Memo.Font.Size := 10;
   Memo.ShowHint := True;
@@ -871,7 +869,7 @@ constructor TMainForm.Create(AOwner: TComponent);
       if (I >= 0) and (I <= Ord(High(TThemeType))) then
         FOptions.ThemeType := TThemeType(I);
       FMainMemo.Font.Name := Ini.ReadString('Options', 'EditorFontName', FMainMemo.Font.Name);
-      FMainMemo.Font.Size := Ini.ReadInteger('Options', 'EditorFontSize', FMainMemo.Font.Size);
+      FMainMemo.Font.Size := Ini.ReadInteger('Options', 'EditorFontSize', 10);
       FMainMemo.Font.Charset := Ini.ReadInteger('Options', 'EditorFontCharset', FMainMemo.Font.Charset);
       FMainMemo.Zoom := Ini.ReadInteger('Options', 'Zoom', 0); { MemoZoom will zoom the other memos }
       for Memo in FMemos do

whatsnew.htm

@@ -33,6 +33,8 @@ For conditions of distribution and use, see <a href="files/is/license.txt">LICEN
 
 <ul>
   <li>Compiler IDE: Added mouseover tooltips for all Pascal Scripting support functions and class members showing their prototype. Always shows all classes' members instead of just those of the current object's class.</li>
+  <li>Compiler IDE: Autocompletion lists now use the same font as the editor.</li>
+  <li><i>Fix:</i> When the IDE was started for the first time on a system with a DPI setting over 100%, the editor's initial font size was larger than expected.</li>
   <li><i>Fix:</i> In 6.4.0, using &quot;Shift+&quot; in a <tt>HotKey</tt> parameter in the [Icons] section didn't work and required &quot;Shift&quot; instead, so for example &quot;Ctrl+ShiftM&quot; instead of &quot;Ctrl+Shift+M&quot;.</li>
   <li><i>Fix:</i> In 6.4.0, a custom form shown using <tt>[Code]</tt> didn't have a taskbar button if Setup's wizard was not visible at the time.</li>
 </ul>