Is “Theming” a Scrabble word?
Yes
THEMING
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Theming
verb
1.To give a theme to.
“We themed the birthday party around superheroes.”
2.To apply a theme to; to change the visual appearance and/or layout of (software).