[Bug] PNG -> CUR has black background

[lrolot]

Describe the bug
When I put a PNG file into the website and converted to CUR, all transparent pixels turn black. This is probably caused by the ICO format bridging the two. There were no non-transparent pixels on the edge of the PNG.

To Reproduce
Steps to reproduce the behavior:

1. Get any PNG file with no solid pixels on the edge.
2. Drag it into convert.to.it
3. Select CUR out of the list.
4. All transparent pixels will be black.

Expected behavior
All pixels should still be the same as on the PNG.

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser: Chrome
• Version: ???

Additional context
This happened one time when i made custom icons for windows and the PNG whould make every pixel from the edge be black along with any other pixels the colour of the edge pixels. This is why my custom icons have black pixels on the edge. Here is an example of an icon i made. icon.bmp

My Suggestion
You should add a direct path from PNG to CUR without needing ICO.

[Coleisforrobot]

Hi, I'm struggling to replicate the issue on Firefox or Chrome. Both ico and cur files seem to retain transparency, if with some brightness decrease in one test image. It might help if you could send the png image you used?