**Best Practices**
”When animation is implemented into a design system, it's important to be consistent.”
”Keep animation consistent with your product. It's a physical system of laws.”
- Decelerate (ease-out) human interactions
- Accelerate (ease-in) system-initiated interactions
- Fades and color-changes look best with more linear, subtle curves
- Bounces increase animacy and add an air of "fun"
- Longer durations for large(r) movements
- Use `ms` as `transition-duration` standard unit value (internal engines use it)
**Examples**
- [[ https://phabricator.wikimedia.org/source/wikimedia-ui-base/browse/master/wikimedia-ui-base.less$206 | WikimediaUI Base – default transitions for use across our products ]]
- OOUI implementation
**Plan of action!**
[] Integrate best practices in WikimediaUI Style Guide
[] Evaluate animations/transitions currently in use in (web) products