Weird looking pushbuttons when trying to modify Aero Lite theme

[tomasz1986]

Windows Version: Windows 10 21H2, Windows 11 24H2

Expected behavior

Pushbuttons should look the same as in the default Aero Lite theme.

Actual behavior

Pushbuttons look very weird. This happens as soon as loading the default Aero Lite theme into the application, even without any actual modifications.

What I have done so far:

• tested a variety of different versions of msstyleEditor from v1.5 to the current v2.1.1.0.
• tested in both Windows 10 and 11
• tested with both SecureUxTheme and UXThemePatcher
• used both "test mode" and also installed the theme in the OS
• tried renaming the theme files, etc.

Basically nothing helps, so I believe this may be a bug in the application itself.

To reproduce:

1. Open the default Aero Lite theme in msstyleEditor.
2. Click the test button to apply the theme to the OS.
3. Perform an action that shows a pop-up with "Yes/No" buttons.

Additional context

Broken buttons:

Default Aero Lite buttons:

Checklist

• My uxtheme.dll is patched
• I am using the latest version of msstyleEditor
• None of the other issues cover this

[tomasz1986]

I have found a workaround. You need to go to Button → PUSHBUTTON, and then in the Property View, change all UNKNOWN_5107_MARGINS from 1 to 0.

The question remains why these are applied automatically by msstyleEditor even though the original Aero Lite theme doesn't seem to use them 😅.