For the 1st one, search dim and turn that off.
For the 2nd one tap the search bar and enter your keywords, now tap on filter by community button. This should filter posts by community of your choice.
Community to discuss Summit, an open-source Lemmy reader for Android.
App (Play Store): https://play.google.com/store/apps/details?id=com.idunnololz.summit
APK: https://github.com/idunnololz/summit-for-lemmy/releases
Source: https://github.com/idunnololz/summit
Support the app
Website: https://summit.idunnololz.com/
For the 1st one, search dim and turn that off.
For the 2nd one tap the search bar and enter your keywords, now tap on filter by community button. This should filter posts by community of your choice.
1 - dim option toggles between dimming everything and dimming just the title.