[Stor31]

Originally Posted by Cesar82

Open the script and change the name as needed.
The parts of the code referring to the logo image file are below (Search the script).

#define Theme "ORANGE" 

#if Theme != "NULL"
Source: "Resources\LightInstallerLogo{#Theme}.bmp"; DestName: "LightInstallerLogo.bmp"; DestDir: "{tmp}"; Flags: dontcopy
#endif

  #if Theme != "NULL"
  with TBitmapImage.Create(WizardForm) do
  begin
    Parent := WizardForm;
    SetBounds(ScaleX(14), WizardForm.NextButton.Top + ScaleY(1), ScaleX(225), ScaleY(20));
    Bitmap.AlphaFormat := afDefined;
    Bitmap.LoadFromFile(ExpandConstant('{tmp}\LightInstallerLogo.bmp'));
    #if VER >= 0x06000000
    Anchors := [akLeft, akBottom];
    #endif
    if '{#AppURL}' <> '' then begin
      OnClick := @LogoOnClick;
      Cursor := crHand;
    end;
  end;
  #endif

  #if Theme != "NULL"
  ExtractTemporaryFile('LightInstallerLogo.bmp');
  #endif

P.S: If you just want to change the name of the image file that is in the resources folder, you only need to change it after the word resources in code 2. This way the image inside setup.exe will remain as LightInstaller.bmp, but your external file will have the name you put, but it must be a bitmap image (.bmp).

I changed everything
but the result