Pro This page describes rup-flow Pro, available since Pro 1.0. The free edition does not include it. What Pro is

Themes

Diagram sources never carry colors. Pro applies the look when it draws, so the sources stay clean and one change restyles everything. Changing the palette redraws every diagram on the next render.

The palettes

Preset	Character
default	Neutral blue-gray on white; safe for any document
ocean	Blues and teals
forest	Greens, calm and low contrast
sunset	Warm oranges and reds
grape	Purples
mono	Grayscale; prints well in black and white
dark	Dark background, light lines
high-contrast	Black on white and yellow, for accessibility

default

ocean

forest

sunset

grape

mono

dark

high-contrast

Choosing

RUP themes
RUP render --theme ocean

Or in rup.config.json:

{ "theme": { "preset": "ocean" } }

Your own colors

Override single colors on top of a preset, in the configuration or with a flag:

Color	What it paints
background	Page of the diagram
text	Text
line	Lines and arrows
border	Borders of boxes
primary	Boxes
secondary	Groups and packages
accent	Highlights
note	Notes
levels	Exactly four colors, one per domain-model level

{ "theme": { "preset": "ocean", "colors": { "accent": "#0A7A5A" } } }

RUP render --theme ocean --color-accent "#0A7A5A"

Colors must be #RRGGBB; a wrong value or a wrong number of levels stops the render with a message.

Fonts and shape

Setting	Flag	Default
theme.font	--font	A sans-serif stack
theme.fontSize	--font-size	14
theme.roundCorner	none	6

Rules for sources

• Never write colors, skinparam color lines, init blocks or classDef colors into a diagram to style it: that overrides the palette.
• In the domain model, each level package is tagged <<level1>> to <<level4>> in PlantUML (:::level1 in Mermaid) and the renderer colors it from levels.
• Stereotypes such as <<boundary>>, <<control>> and <<entity>> are content and stay.
• Wireframes are PlantUML salt layouts and are not themed.

Related

Mermaid and PNG previews · The interactive explorer · Configuration