1. **Documentation:** Update `src/grid/column/Base.mjs` to clarify that `cellCls` adds classes and does not remove default ones. 2. **SCSS Cleanup:** * In `resources/scss/src/apps/devrank/GridContainer.scss`, wrap heatmap selectors (e.g. `.neo-grid-row .heatmap-cell-3`) to prevent overriding/being overridden improperly. * Remove `opacity: 0.5` from `.heatmap-cell-0` to fix border transparency issues. 3. **Theming:** * Create `resources/scss/theme-neo-dark/apps/devrank/GridContainer.scss` with specific DevRank grid colors. * Create `resources/scss/theme-neo-light/apps/devrank/GridContainer.scss` with specific DevRank grid colors.