Buttons plug-in does not show colour (LYT theme)

I am using the Buttons plug-in with the LYT Mode theme, and it does what it is supposed to but none of my buttons show any colour when I am using Obsidian on my Mac (in the mobile version, the buttons do show the colour assigned to them).

Here is what it looks like:

And here is the code for each of the two buttons in the screenshot:

name Pomodoro 🍅 🍅 🍅
type link
action obsidian://open?vault=main&file=Pomodoro
color red


name Daily Note
type command
action Periodic Notes: Open daily note
color purple


Has anyone faced this issue, and can share with me how to troubleshoot this?