SwanOB2

ProGIF / ProGIF Universal / ProGIF Recorder Toolkit
 

1. Recorder issue, about the transparent feature: 

(This issue is solved in ProGIF/Rec Toolkit v1.9.5, ProGIF Universal v1.1.5)

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The border(s) form by the averaged color pixels appears during the graphics blit process(scale to target resolution during recording GIF or converting existing textures to GIF).

This is a common problem(quality degrading) in the image scaling process. It affects the visual quality a little bit more in the transparent GIFs, but can be ignored in non-transparent GIFs(similar to scaling the jpg/png images).

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* The border just like a line(1 pixels width, the worst case) on the objects' edge. In some cases are some dots along the edge only. 
* If you are going to create transparent GIFs and care about the issue, the current workaround is using a background color that similar to your Characters/Objects' edge, or adding an outline to your Characters/Objects and use a background color that similar to the outline, so the averaged color pixels will become part of the Characters/Objects edge, outline.

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Solved, update: 2020-10-09