Phoenix
Phoenix is an easy-to-use and pretty looking image editor.
It has a simple and lightweight interface.
It supports text printing and can export images in all major formats: "skch",
"nft", "nfp" and "png" (fake png used in my OS).
Screenshots:
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Download:
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You can open an existing project from the shell by adding the "open" or "-o" argument and the file name.