I tried to configure it as you suggested. Instead of a preview, something went wrong. The screenshot is attached. However, this happens only if you set the Type to TEXTURE_2D. If you set it to REGULAR, the game crashes when selecting the arena. I'm attaching the arena itself, hoping you'll find a moment to write all the lines correctly in the xdb file, and I can learn from your example. Or, perhaps, you'll discover another error.
And I had to slightly increase the texture size to 240x180, adding empty areas to the right and bottom of it, so that it would load correctly.
