Fix the OnlyShowIn= entry to use "LUMINA" (all caps) since that is what is also set in the XDG_CURRENT_DESKTOP environment variable.
Fix the OnlyShowIn= entry to use "LUMINA" (all caps) since that is what is also set in the XDG_CURRENT_DESKTOP environment variable.

trueos/lumina,sasongko26/lumina,grahamperrin/lumina,Nanolx/lumina,krytarowski/lumina,trueos/lumina,simplexb/lumina,cpforbes/lumina,cpforbes/lumina,pcbsd/lumina,grahamperrin/lumina,harcobbit/lumina,trueos/lumina,sasongko26/lumina,harcobbit/lumina,sasongko26/lumina,sasongko26/lumina,simplexb/lumina,krytarowski/lumina,cpforbes/lumina,trueos/lumina,trueos/lumina,trueos/lumina,harcobbit/lumina,Nanolx/lumina,trueos/lumina,sasongko26/lumina,sasongko26/lumina,pcbsd/lumina,cpforbes/lumina,mneumann/lumina,cpforbes/lumina,krytarowski/lumina,sasongko26/lumina,sasongko26/lumina,cpforbes/lumina,cpforbes/lumina,mneumann/lumina,Nanolx/lumina,trueos/lumina,cpforbes/lumina,pcbsd/lumina