Hey @nicooud! First, make sure you update the theme and the Style Settings plugin (made some updates today).
Then you can add this to a CSS snippet in your vault to get a color picker for each heading:
/* @settings
name: Heading Colors
id: heading-colors
settings:
-
id: h1-color
title: H1 Color
type: variable-themed-color
format: hex
default-light: '#000000'
default-dark: '#FFFFFF'
-
id: h2-color
title: H2 Color
type: variable-themed-color
format: hex
opacity: true
default-light: '#000000'
default-dark: '#FFFFFF'
-
id: h3-color
title: H3 Color
type: variable-themed-color
format: hex
default-light: '#000000'
default-dark: '#FFFFFF'
-
id: h4-color
title: H4 Color
type: variable-themed-color
format: hex
default-light: '#000000'
default-dark: '#FFFFFF'
-
id: h5-color
title: H5 Color
type: variable-themed-color
format: hex
default-light: '#000000'
default-dark: '#FFFFFF'
-
id: h6-color
title: H6 Color
type: variable-themed-color
format: hex
default-light: '#000000'
default-dark: '#FFFFFF'
*/