I've seen many people praise jola08's work for his Sphere Grid Icon Replacement, but also disappointed because it wasn't the default sphere grid icon, so I've remade them just for those one (and the others of course).
Installation
Download Kaldaien's Untitled Project X on steam here : http://steamcommunity.com/app/359870/discussions/0/364041517007524857/
Extract the archive at the root of your Final Fantasy X/X2 HD Remaster directory.
Then, grab my mod and extract to "\Steam\steamapps\common\FINAL FANTASY FFX&FFX-2 HD Remaster\UnX_Res\inject\textures"
Uninstall
Remove the dds from the inject folder (the name of each dds are inside the archive, so keep it)
My other mods
HD Sphere Grid Normal and Expert
Yuna Dark Aeons
Yuna Tidus inspired Outfit