Hello! First, this program has been a blast so far in terms of learning and usage. It's been so fun testing out every feature!
The recent update itself was pretty exciting to explore, as I've created Giftubers in the past and wanted to test them out via the sprite sheet addition (I'm also very new to the concept of sprite sheets, so forgive me if I've missed a step here ^^;;)
I remembered one of your previous tweets mentioning using the gif-to-SpriteSheet converter by ezgif. It's really up to personal preference beyond this point, but I don't like having to convert a sprite sheet from a gif since the gif itself doesn't retain the quality of the art. So, I tested with an APNG instead.
(The first one is from a sprite sheet made from APNG, while the second one is from a sprite sheet made from a GIF)
(Also, these aren't the original file sizes, but the site doesn't let me upload them at their original size so ;w;)
When the program takes the sprite sheet made from the gif, it appears as it should. However, when I use the one made from the APNG, it does this strange black box. At first, it seems to at least be able to read the outlines of the art? but still isn't visible regardless.
(First example is the gif-SpriteSheet, second is the APNG-SpriteSheet)
I did another test where I created a sprite sheet with the original frames itself (I used a images-to-SpriteSheet converter) - except this time I used less than 10 frames (4 frames to be exact). You can see that the program can read this sprite sheet fine.
I do admit that since the APNG-SpriteSheet contains the original quality, it also retains the original amount of frames (30-ish frames). In hindsight it does seem excessive; I made these giftubers specifically for veadotube and wanted to test them here. Overall, I'm curious to know if there's a limit for frames per sprite sheet? I haven't figured out the number yet, but it seems that the less there is; the better. If there's no workaround, then I completely understand and can readjust my projects as such. I just wanted to know for sure.
(Apologies for the long post, and thank you for all your hard work!)