Which tool/program they used to generate snes picture

[yugisokubodai]

I've tried several pic 2 snes format programs out there but none is as accurate as I wish.
I wonder back then 20 years ago, which tool/program did Snes artis use to generate Snes picture?

P/s: the following result was done with SnesGFX v2.62, which palette is not accurate and some tiles are wrong.

[hanhnn]

I've tried some tools, the best so far I can find are BMP2SNES, grit, usenti.
Klarth's Tile Editor tool is supposed to be exactly what you need, but I'm not sure if it has been released yet.

[Klarth]

Sorry, TileShop won't be released for some time. I'm having some UI/XML design difficulty regarding differences with the UI handling linear and tiled editing modes. I expect to release a beta sometime soon after that, but I don't have much time to work on it currently. Importing graphics won't be available in this initial release.

[dougeff]

Back in the day, developers might have used a similar computer (like Apple iigs) and maybe used drawing programs like Deluxe Paint II.

The apple iigs has the same processor as SNES, and can do 4 bpp graphics, similar to many of the modes on SNES, and sprites.

Though, I can't be sure of exactly what they used. This is speculation, mostly.