1. To modify the moon, ye must first find the original texture, which should be located in the textures folder in the FH Media folder. I'm not exactly sure what it's called, but once ye find that, save a copy-in case ye ever wish to return to that style-and edit the file in GIMP. Make sure to include y'er modified moon texture with y'er map download, so others will be able to see it. Changing the sky color can be done in the Sky Maker.
2. As f'er making the map less blocky, ye just 'ave to really blend it well. If white is surrounded by a dark gray or black, 'twill more than likely end up blocky 'round the edges due to the high contrast. There will not be much ye can do if that is the problem at hand. Colors that are close in shade blend better and appear smooth in-game, more so than that of light and dark shades put close t'gether.
If ye 'ave any more questions 'bout this, feel free to let me know. I'd be happy to go into further depth.
