[FireRed] How To Edit The Intro Sprites

1. First, you're gonna load up your image in the image editor of your choice. (Like I said, I'll be using GIMP). I'll be using an image of Paul Brown from TPP for this tutorial (Art courtesy of Megaman-Omega).
Make sure the image is 64x96 in size, even if your character doesn't take up the whole space. Also, fill the background in with another color like usual and turn off transparency (Layer -> Transparency -> Remove Alpha Channel). GIMP doesn't play well with transparency in indexed images. GraphicsGale might fare better here, but for the sake of following this tutorial go ahead and disable transparency too if you're using that program.

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2. Next, you'll want to index the image like normal, ensuring the background color is first in the order. As this is an indexing tutorial for a specific resource, and not a general one, I will not cover that here and assume you already know how to index a normal image. Please note that you can have up to 32 colors! The total amount of colors should be either 16 or 32, even if you have to add some blank ones to make it work.

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3. Now, you will add extra rows of colors to the colormap. Make sure you are using a color that is not in your image. I'm using hot pink in this example. If you are replacing Red or Leaf, add 4 rows, if you are replacing Oak or Blue, add 6 rows. This is because the palettes are loaded in different slots in-game. Note: If you are using GraphicsGale, there may be a bunch of empty rows below the ones you added. Worry not, that's just GraphicsGale being GraphicsGale. Just make sure you have the right number of rows that you added.

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4. Rearrange the colormap to where your "real" colors are on the bottom row, as shown above. The "true" transparent color should remain in slot 0 as shown. If you are replacing Red or Leaf, your real colors should be on the 5th row, if you are replacing Oak or Blue they should be on the 7th row.

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5. If you originally only had 16 colors (like in my example), add another row to the bottom. If you originally had 32 colors, skip this step.

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6. You're done with the indexing part! Export the image into the graphics/oak_speech folder, overwriting red_pic.png, leaf_pic.png, oak_pic.png, or rival_pic.png. Then, move on to part 2 of this tutorial.

1. Locate the corresponding .pal file to the picture file you edited. red_pic.png has a red_pal.pal, oak_pic.png has an oak_pal.pal, etc.

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2. Open your terminal and navigate to where you would usually run make. Then run the following command, replacing red_pic.png and red_pal.pal with the files for the person you're trying to replace:
This should modify the .pal file you located earlier, using the palette from the png you just indexed.

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3. Open up your .pal file. You should see either 80 or 112 as the number of colors, depending on whether you added 4 rows or 6 rows back in part one. If you see a different number, you did part 1 incorrectly. Note: the decomps will only accept .pal files with CRLF file endings. If you are on Windows, you don't need to know what this means, but otherwise, you should make sure you are using a text editor that preserves line endings.

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4. Change the number of colors to 32.

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5. Keeping the header and "number of colors" lines, delete all the colors in the file except for the last 32, including the "real" transparent color. Your final pal file should be exactly 36 lines including the newline at the end of the file.
Example Pal File:


And now you're done! Congrats! You can go ahead and build your ROM now.