[Bug] Extra line of white pixels at the bottom of my gifs

[SilentSin]

Describe the bug

I'm getting an extra line of white pixels at the bottom of every gif I record.

To Reproduce

1. Set the height of the recording area to 400.
2. Record a gif.
3. Go to the Statistics tab.
4. It shows the Frame Size height as 401.

Expected behavior

The gif should have the exact dimensions specified before starting the recording.

Screenshots

Adding a progress bar puts it right at the bottom so you can see it has a different bottom to the rest of the gif:

The issue issn't caused by the progress bar though:

Desktop

• OS: Windows 11
• Version 2.41

[SilentSin]

Enabling Hide the title bar (thin mode) in the settings seems to have changed the behaviour to:

1. Set the recording area to 250x400.
2. Record a gif.
3. Statistics shows 250x400.
4. Go back to the recorder.
5. Now its size is 250x399.
6. Recording at that size stays there.

[SilentSin]

Setting the recorder interface to New mode has a similar problem: 250x400 is coming in as 249x399.

[tipsheda]

I get this same issue with this program and with another gif making tool called Licecap. It seemed to start when I started using a 1440p monitor vs 1080p, but I'm not 100% sure on that.

[SilentSin]

I'm on 1080p.

First time on Windows 11 though, I never had this issue in 10.

[tipsheda]

Oh yeah, that is to say, I also switched to Windows 11 around the time I started seeing this issue.

[NickeManarin]

Which scalling/DPI are you two using?
The recorder has a hard time adjusting to pixel coordinations if the screen has a DPI different than 96 (scale different than 100%).

[NickeManarin]

For example, on Windows 11 here, setting 500x300 created a correct recording.

[SilentSin]

I'm on 125% by default and I can confirm that 100% seems to fix the rounding errors for a few sizes I tried, though I never had this issue on my old Windows 10 computer which was also using 125%.