Currentlyin Discover the "Change index pattern button" looks like this: <img width="199" alt="Bildschirmfoto 2019-11-29 um 14 42 04" src="https://user-images.githubusercontent.com/463851/69872702-738a1b00-12b6-11ea-985f-b90899abd97f.png"> https://github.com/elastic/kibana/blob/1c2906cc4b571c2464b6a48ad1d7eaf0c1e53feb/src/legacy/core_plugins/kibana/public/discover/components/field_chooser/discover_index_pattern_title.tsx#L73 This should be adapted to Lens style: <img width="317" alt="Bildschirmfoto 2019-11-29 um 14 44 41" src="https://user-images.githubusercontent.com/463851/69872813-cd8ae080-12b6-11ea-90b4-e30ae5d47e37.png"> https://github.com/elastic/kibana/blob/1c2906cc4b571c2464b6a48ad1d7eaf0c1e53feb/x-pack/legacy/plugins/lens/public/indexpattern_plugin/change_indexpattern.tsx#L44
Currentlyin Discover the "Change index pattern button" looks like this:
kibana/src/legacy/core_plugins/kibana/public/discover/components/field_chooser/discover_index_pattern_title.tsx
Line 73 in 1c2906c
This should be adapted to Lens style:
kibana/x-pack/legacy/plugins/lens/public/indexpattern_plugin/change_indexpattern.tsx
Line 44 in 1c2906c