Better colors

[Ealrann]

VSand could have a better look with different colours.

For example, when the Fuel burn, an intermediate hidden material ("sparkle") is created to propagate the fire. This sparkle is dark red, but it doesn't look really convincing.

They can be tweaked in this file, by simply changing the R, G and B fields (red, green and blue):

VSand/org.sheepy.vsand/src/main/resources/Application.vsand

Lines 317 to 339 in 4e48bcc

	<materials name="Void" runoff="60"/>
	<materials name="Sand" density="5" runoff="1" r="244" g="244" b="67"/>
	<materials name="Dirt" isStatic="true" density="5" runoff="1" r="72" g="38" b="4"/>
	<materials name="Wall" isStatic="true" density="20" r="153" g="153" b="143"/>
	<materials name="Concrete" density="4" runoff="12" r="94" g="94" b="85"/>
	<materials name="Water" density="3" runoff="64" r="67" g="67" b="244"/>
	<materials name="Vapor" density="-2" runoff="1" r="159" g="159" b="249"/>
	<materials name="WetDirt" density="5" runoff="1" r="48" g="26" b="3" userFriendly="false"/>
	<materials name="Grass" isStatic="true" density="1" r="11" g="193" b="11" userFriendly="false"/>
	<materials name="Fire" density="-1" r="244" g="67" b="67"/>
	<materials name="FireStatic" isStatic="true" r="244" g="38" b="38" userFriendly="false"/>
	<materials name="FireFinal" isStatic="true" r="255" userFriendly="false"/>
	<materials name="Plant" isStatic="true" density="15" r="67" g="244" b="67"/>
	<materials name="Wax" isStatic="true" density="20" r="254" g="254" b="231"/>
	<materials name="LiquidWax" density="2" runoff="3" r="231" g="254" b="254" userFriendly="false"/>
	<materials name="BurningWax" isStatic="true" r="244" g="38" b="38" userFriendly="false"/>
	<materials name="Lava" density="4" runoff="5" r="244" g="111" b="67"/>
	<materials name="LavaBoiling" density="2" runoff="6" r="244" g="244" b="67" userFriendly="false"/>
	<materials name="Fuel" density="1" runoff="30" r="212" g="158" b="59"/>
	<materials name="Petrol" density="2" runoff="30" r="30" g="30" b="95"/>
	<materials name="PetrolFire" density="1" runoff="30" r="50" g="15" b="106" userFriendly="false"/>
	<materials name="Sparkle" r="185" g="50" b="65" userFriendly="false"/>
	<materials name="HotWax" density="1" runoff="3" r="231" g="254" b="254" userFriendly="false"/>

After a change, simply run ./gradlew run to launch the game with your new colours.

Since I'm pretty bad with colours, I let this issue open and ask for help.