And if you want different colours for the editor and preview modes, in the dark and light themes:
/* EDITOR Bold Colour DARK THEME */
.theme-dark .cm-s-obsidian .cm-strong, strong {
font-weight: 600;
color: #FF8C00 !important; /* deep-orange */
}
/* PREVIEW Bold Colour DARK THEME */
.theme-dark .markdown-preview-view .cm-strong, strong {
font-weight: 600;
color: #71C671 !important; /* chartreuse */
}
/* EDITOR Bold Colour LIGHT THEME */
.theme-light .cm-s-obsidian .cm-strong, strong {
font-weight: 600;
color: #48D1CC !important; /* mid-turquoise */
}
/* PREVIEW Bold Colour LIGHT THEME */
.theme-light .markdown-preview-view .cm-strong, strong {
font-weight: 600;
color: #DC143C !important; /* crimson */
}
Well, this works in my tests using Obsdn-dark-rmx.
Angel