I have edited the colour-palette.scss and the style.css files in notepad++ attempting to change the top menu colour. I entered the files into SassMeister to try and compile them, but they do not show anything.
I tried downloading a compiler called Koala, but it doesn’t work on my computer. All the instructions I find don’t seem to have specific compiler details.
So the file you’re trying to compile is style.scss, and it should produce a file called style.css, and it automatically includes the changes you’ve made in the other included files (like colour-palette.scss).
Now, I don’t know how to do that in Windows, with those programs you mention, but you can either find out by yourself, or try running pscss in Windows, inside a “Git Bash prompt”, or installing Ubuntu-as-an-app from the Windows Store.
I have two version of Suite CRM one on a bitnami server on windows I use for experiments and one on an Apache Server I use when my experiments pass.
To change the colour I was using making changes in the SPSS files but it would not compile to the SCSS and I could not find instructions that showed me how it worked. Turns out there is a massive learning curve here that the following gentleman kindly has filled. (I thought it was simply uploading to a site, muxch more complicated)