Based on our record, Slack Themes seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Check out https://slackthemes.net/ for some ideas. You can the copy paste the values to your preferences in Slack to make use of theme. Source: about 3 years ago
Cruip - Landing page templates for startups
Sweet Themes - Color Themes for Slack
Shade - Super easy color contrast insights and recommendations
Best Of Themes - The simplest way to browse thousands of website themes
LP151 - You can create a landing page here
Rainglow Color Themes - 320+ color themes for a variety of editors and software.