| Package | Local Description (use.local.desc) | Metadata Description (metadata.xml) |
|---|---|---|
| mail-client/thunderbird | - | Use the system-wide <pkg>media-libs/libpng</pkg> instead of bundled (requires APNG patches) |
| www-client/firefox | - | Use the system-wide <pkg>media-libs/libpng</pkg> instead of bundled (requires APNG patches) |