Here is the full list of all 12 Lowglow achievements.
Open all of the vaults in Umbralight
Complete the fifth chapter
Destroy 50 lines.
Complete 15 levels with less lines than the given amount.
Complete the fourth chapter
Open your first vault.
Complete the third chapter
Complete the second chapter.
Complete the first chapter.
Complete 5 levels with less lines than the given amount
Complete a level without missing a single drop.
Complete 30 levels with less lines than the given amount. Magnificent!