You can install KOReader on Android as well. Well it lacks OPs material Design requirement, but it fulfills the other.

Doch

Lass dich davon nicht Stören.

May I introduce you: webxcel

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There is a LaTeX package to do this.

Python people be like: self.

That’s ich_iel spirit.

You can’t block Elon Musk on Twitter. Tried it. If you reload the page, he is magically unblocked.