as most of the items related to solar pillar have the prefix "solar flare" (eg. solar flare pickaxe, solar flare wings. I cannot stop thinking why not let flare gun upgrade to "solar flare gun" or have "solar flare" (the flare ammo) as the ultimate illumination tool. not sure what sort of effect should it have yet, maybe the ability to go through blocks and leave a trace of floating light source behind?