From WikiApiary, tracking Chameleon and over 3,200 other skins

Name: Chameleon (ID: 30530) Image for Chameleon
Author(s): Stephan Gambke
Description: The Chameleon skin uses Twitter Bootstrap 4. It currently features a horizontal navigation menu with dropdowns at the top and a horizontal menu with dropups for the language links at the bottom.
Tags: Bootstrap
Related extensions: Extension:Bootstrap
Derived from: This skin is not derived from another skin.
Website count: 371 (1.9%) (Skipped on 11 sites.)
Websites using as default 286
Websites skipping it 11
Segments Day: 3 Hour: 2

Chameleon is default skin on websites:

Chameleon is an available skin on websites: