A very nice feature would be the ability to style the launcher more extensively, for example through code like CSS. I would like to have the option to change the rounding of the edges or add animations so that the launcher resembles the macOS Tahoe style more closely (I love the beautiful animation of opening Spotlight).
Would it be possible to add such an option?
Theming & styling are currently not a priority for the Launcher. It already uses the latest macOS liquid glass styles and is fully native - thus CSS etc. are out of the question.
However I do plan to invest time in animations and item styling once the initial feature list & rollout is complete 
I’m really interested in custom styles for the launcher. I read the Raycast post about their beta, and they mentioned using React to render some parts of the UI.
Would you consider something like that? Is there any way to contribute to this feature?
A valid point, but maybe we should stay away from React, or it will end up like Windows 11 :V
Edit: If someone doesn't know what's going on, many elements of Windows 11 are written in React. For example, the notification center and the Start Menu.
"Swift plugin can usually render inside a floating menu/widget context or as a plugin-driven UI element that appears over existing UI."
I see 2 options for quick win
react makes sense for raycast because they are multi-platform. Recent BTT alpha added support for the raycast react extensions, so the BTT launcher can render them. In general react does not make sense for BTT - BTT's swift based plugins are much more performant & powerful.