v7.20.0-beta.1

• Stories with long captions are displayed on a subtle gradient background that improves contrast and makes the text easier to read. Now that people can see what you're saying, feel free to write a couple paragraphs about why something really made you laugh instead of just saying "lol."
• This release also improves the performance of link preview generation and fixes a bug that caused the Settings window to briefly flash a lovely shade of ultramarine whenever it was closed (instead of just closing right away).