[BugFix] Fix node color for custom light themes (#2621)

Co-authored-by: github-actions <github-actions@github.com>

browser_tests/colorPalette.spec.ts

@@ -152,6 +152,7 @@ test.describe('Color Palette', () => {
     // doesn't update the store immediately.
     await comfyPage.setup()
 
+    await comfyPage.loadWorkflow('every_node_color')
     await comfyPage.setSetting('Comfy.ColorPalette', 'obsidian_dark')
     await expect(comfyPage.canvas).toHaveScreenshot(
       'custom-color-palette-obsidian-dark.png'
@@ -232,7 +233,7 @@ test.describe('Node Color Adjustments', () => {
     const workflow = await comfyPage.page.evaluate(() => {
       return localStorage.getItem('workflow')
     })
-    for (const node of JSON.parse(workflow).nodes) {
+    for (const node of JSON.parse(workflow ?? '{}').nodes) {
       if (node.bgcolor) expect(node.bgcolor).not.toMatch(/hsla/)
       if (node.color) expect(node.color).not.toMatch(/hsla/)
     }

src/scripts/app.ts

@@ -27,6 +27,7 @@ import { useSettingStore } from '@/stores/settingStore'
 import { useToastStore } from '@/stores/toastStore'
 import { useWidgetStore } from '@/stores/widgetStore'
 import { ComfyWorkflow } from '@/stores/workflowStore'
+import { useColorPaletteStore } from '@/stores/workspace/colorPaletteStore'
 import { useWorkspaceStore } from '@/stores/workspaceStore'
 import type { ComfyNodeDef } from '@/types/apiTypes'
 import type { ComfyExtension, MissingNodeType } from '@/types/comfy'
@@ -650,7 +651,7 @@ export class ComfyApp {
       const opacity = useSettingStore().get('Comfy.Node.Opacity')
       if (opacity) adjustments.opacity = opacity
 
-      if (useSettingStore().get('Comfy.ColorPalette') === 'light') {
+      if (useColorPaletteStore().completedActivePalette.light_theme) {
         adjustments.lightness = 0.5
 
         // Lighten title bar of colored nodes on light theme