ConstPrefer getActiveThemeColors() which returns the correct palette for the
current data-theme value. Migration:
// Before
import { THEME_COLORS } from './theme.js';
chart.data.datasets[0].borderColor = THEME_COLORS.cyan;
// After
import { getActiveThemeColors } from './theme.js';
chart.data.datasets[0].borderColor = getActiveThemeColors().cyan;
Cyberpunk (dark) theme color palette — kept as the default export for backwards compatibility with existing Chart.js consumers.