My deepest condolences goes out to Re-Logic and Leinfros' loved once.
At first i though Leinfors' had moved to another job, only to realize that sadly wasn't the case.
While i didn't know too much about Leinfors, but i had on several occasions talked with him
both on the forum and DMs, often the topic about Issues and bugs related to sprites and modding without the need of TML (Texturepacks) and oddities I've come across.
But also lending my knowledge to help with issues and troubleshooting regrading Texture/Resourcepacks,
either question or issues they've had stumbled onto with either using or making their own Texturepack alongside Leinfors.
To me Leinfors seemed to be in the center of Re-Logic, by how he knew each other Re-Logic member's
knowledge and Expertise in their field in regards to question and bugs, by whom would be the best to pass it over to or discuses it with.
also that he were easy to talk with.
Before Leinfors' passing, i were writing up things i though could improve the Texturepacks and Resourcepacks
Sadly i didn't get to share them with him, as i very much would had liked know what he though about them.
which left me at a loss, not as much as Re-Logic and he's loved once obviously, but as someone that were fund of the discussions we had in DMs.
Whenever your think of something, that would have sounded like something Leinfors would have said, he might just had visited you from beyond.
No one is truly gone, as long they stay in our heart and memories.
I would be surprised if there were not a of memorial to Leinfors ingame in Terraria 1.5+
