Wiktionary
touching up
vb. (present participle of touch up English)
Usage examples of "touching up".
Creakle giving it to Traddles, but the sound of the coachman touching up the horses.
She's touching up Weber's dark roots, separating clumps of hair with surgical-gloved fingers.
The stone was white instead of gray from ages of city grime, and two workmen on a scaffold were touching up the pediment reliefs with red and blue paint.
Everywhere Herald went, Kade had just left, organizing this, touching up that, making last-moment adjustments.
The building might have been a thousand years old, there was no way of telling, but many of the murals were in a marvellous state of preservation and needed only a little touching up.