checkin

Author: woz5999

figures/_style.py

@@ -70,6 +70,56 @@ def apply_style():
     mpl.rcParams.update(PPM_RC)
 
 
+# ─── Light-theme palette (for prose-figure mode) ────────────────────────────
+# Use this when a figure sits in body prose where a near-black background
+# reads as a "visual black hole" against the document's white pages.
+
+BG_LIGHT     = '#F2F2F6'
+PANEL_LIGHT  = '#FAFAFC'
+TEXT_DARK    = '#1A1A2E'
+TEXT_MUTED   = '#4A4A5C'
+GRID_LIGHT   = '#CCCCD4'
+
+# Semantic colors darkened so they stay readable on light bg.
+GOLD_DARK    = '#A8841F'
+VIOLET_DARK  = '#5547A8'
+CYAN_DARK    = '#1A6A75'
+ORANGE_DARK  = '#D86A0A'
+RED_DARK     = '#B83020'
+GREEN_DARK   = '#1E8048'
+BLUE_DARK    = '#1A6CB0'
+GRAY_DARK    = '#666677'
+
+PPM_LIGHT_RC = {
+    'figure.facecolor': BG_LIGHT,
+    'axes.facecolor':   PANEL_LIGHT,
+    'axes.edgecolor':   TEXT_DARK,
+    'axes.labelcolor':  TEXT_DARK,
+    'text.color':       TEXT_DARK,
+    'xtick.color':      TEXT_DARK,
+    'ytick.color':      TEXT_DARK,
+    'grid.color':       GRID_LIGHT,
+    'grid.alpha':       0.6,
+    'legend.facecolor': PANEL_LIGHT,
+    'legend.edgecolor': GRAY_DARK,
+    'legend.labelcolor': TEXT_DARK,
+    'font.family':       'serif',
+    'font.size':         11,
+    'axes.titlesize':    13,
+    'axes.labelsize':    12,
+    'savefig.facecolor': BG_LIGHT,
+    'savefig.edgecolor': BG_LIGHT,
+    'savefig.dpi':       200,
+    'savefig.bbox':      'tight',
+    'savefig.pad_inches': 0.15,
+}
+
+
+def apply_light_style():
+    """Apply PPM light-theme matplotlib style (for prose-figure mode)."""
+    mpl.rcParams.update(PPM_LIGHT_RC)
+
+
 def new_figure(width=8, height=5, **kwargs):
     """Create a new figure with PPM styling."""
     apply_style()