Themes
Themes control all colours and stroke widths used by the Canvas.
Built-in themes
Default
Nord
The Nord theme uses the Nord colour palette — cool blues and muted tones suitable for academic presentations.
Custom theme
from econ_viz import Theme
my_theme = Theme(
name="custom",
axis_color="#333333",
label_color="#333333",
ic_color="#2563eb",
ic_linewidth=1.5,
budget_color="#dc2626",
budget_linewidth=1.5,
budget_fill_alpha=0.08,
eq_color="#16a34a",
eq_markersize=6.0,
ray_color="#9ca3af",
ray_linewidth=1.0,
kink_color="#2563eb",
)
cvs = Canvas(x_max=20, y_max=15, theme=my_theme)
Theme attributes
| Attribute | Description |
|---|---|
name |
Theme identifier |
axis_color |
Colour of axis spines and arrow tips |
label_color |
Colour of axis and origin labels |
ic_color |
Indifference curve stroke colour |
ic_linewidth |
Indifference curve stroke width |
budget_color |
Budget line stroke colour |
budget_linewidth |
Budget line stroke width |
budget_fill_alpha |
Opacity of the feasible-set shading |
eq_color |
Equilibrium marker and drop-line colour |
eq_markersize |
Equilibrium dot size |
ray_color |
Expansion-path ray colour |
ray_linewidth |
Expansion-path ray stroke width |
kink_color |
Kink-point marker colour |