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Hmmm, anyone know how to do either one of these things? I might have an idea here... but just in case, lend some advise, please. Thanks!

If I am understanding your question correctly, you will need to use a graphics program to create your tile animation (image) and then load it as an animation into GE's Set Tile Panel.

As far as fonts are concerned, the same is true, except you use a font creation or a graphics program of your choice. You then need to load the font into GE using the New Font button in the Set Text Panel. If you use a font creation program that saves .ttf, then you will also need to copy the new font into the Windows Font directory so that GE will 'see'.

Hths...

For a .TTF font creator i recoment one on high-logic.

You don't need copy ttf fonts to Windows/Fonts directory.
Just select the correct directory, like any other resources.