[I moved this thread to here](https://screentogif.codeplex.com/discussions/579057), so we can swap files.
Contour, you can upload the recording the the Orange color as transparent. I did one with 500 frames and nothing went wrong. *(See attached files)*
About the IBeam (text cursor) ghosting, I know what's happening:
This is the frame 21, after detecting the unchanged pixels, painting it with the selected transparent color and of course, after croping:


This is the local color table of this frame:

As you can see, in a white background, there is no white color available, so the problem is with the algorithm that creates the color table. Here the thing gets tricky... I'll have a look.
By the way, I did a 500 frames recording with orange and nothing bad happened:

Comments: To clarify: I don't have a GIF that fails at this moment. I'll send one when I have time to repeat my original test. The PNG was just so you could see the kind of graphic I working with.
Contour, you can upload the recording the the Orange color as transparent. I did one with 500 frames and nothing went wrong. *(See attached files)*
About the IBeam (text cursor) ghosting, I know what's happening:
This is the frame 21, after detecting the unchanged pixels, painting it with the selected transparent color and of course, after croping:


This is the local color table of this frame:

As you can see, in a white background, there is no white color available, so the problem is with the algorithm that creates the color table. Here the thing gets tricky... I'll have a look.
By the way, I did a 500 frames recording with orange and nothing bad happened:

Comments: To clarify: I don't have a GIF that fails at this moment. I'll send one when I have time to repeat my original test. The PNG was just so you could see the kind of graphic I working with.