I'm sure there are many ways to do this, but this tutorial will document my own personal way of creating transparent textures: textures that can be overlayed over texturable colors within the game.
To start, open any art or image editing software you'd like. I guarantee most all of them can handle the specs required to make a texture. I personally use Jasc Paint Shop Pro. Other popular options are Photoshop, Gimp, and even MS Paint.
Textures must be in 256 color format. This is something that is achieved differently depending on the software you're using.
Textures should be square, and in increments of 16 pixels. 16 x 16, 32 x 32, 64 x 64, etc. Textures of random other sizes will work in petz 3 and 4, but will not work in petz 5. To be kind to our petz 5 players, it's nice to work within those dimensions!
I'll be using 64 x 64 for this tutorial.
You'll also be using the orange gradient 60 - 69 to make your texture. I've experimented with many of the spectrums available within the texturable colors in Petz, and orange yields the best results.
Fill your square in with the lightest colored orange: 60.
This is your base! Fill in whatever creative details you'd like with the rest of the gradient available to you. I highly suggest 65 at the lightest for best results, with the best coming from 69. I've made some sketchy hearts!
Choose what you will be hexing on presently, and save your texture in BMP format in either the resource/catz folder, or your resource/dogz folder. Remember what you've called it!
Next, load it into your breedfile using LNZ Pro. While Petz Workshop can load textures, it has a habit of wreaking havoc with them. Instead, scroll to your texture list and simply add it in. I'm going to add my texture, pintohearts.bmp, into the Great Dane file.
For the purposes of showing you guys the end result, I've actually replaced every texture in my Great Dane file with pintohearts.bmp. But your list will look something like the one above! Be sure you add a "1" add the end. This tells the game to color the texture with the color of the ball it's placed on.
Hex with your texture now however you please! On this list, it would be considered texture number #3. Your end product will have a texture that looks something like this: