Common frog?

Observation - Common frog? - UK and Ireland. Description: Small, smooth, fine-limbed and shiny with side stripes - body half the size of my thumb. Not sure of the colour - it was dark and I was wearing a 70 lumens head torch which tends to bleach things. It kept very still until I turned attention elsewhere - wh

Small, smooth, fine-limbed and shiny with side stripes - body half the size of my thumb. Not sure of the colour - it was dark and I was wearing a 70 lumens head torch which tends to bleach things. It kept very still until I turned attention elsewhere - when I returned it had sensibly moved.