fix(blocks): give the detail headers the same tile as everything else (#6672)

The tile consolidation left the large detail headers on their own treatment,
so a block wore one colour on the canvas and another in the header naming it:
the preview panel behind the deploy modal and the logs trace detail both
painted straight from the catalog `bgColor`, showing Start's catalog blue over
a neutral card, and hardcoded `#2FB3FF`/`#FEE12B` for the two subflows.

Adds the 18px header slot to `BlockTile` and points all three headers at it —
preview panel, trace detail, and the editor header, which had been carrying its
own inline copy of the accent rule. `WorkflowTypeIcon` takes an icon class so
the accent chip can draw the larger glyph the header uses.

apps/sim/app/workspace/[workspaceId]/logs/components/log-details/components/trace-view/trace-view.tsx

@@ -47,7 +47,6 @@ import {
 } from '@/app/workspace/[workspaceId]/logs/components/log-details/utils'
 import { BlockTile } from '@/blocks/block-tile'
 import { isCustomBlockType } from '@/blocks/custom/build-config'
-import { getTileIconColorClass } from '@/blocks/icon-color'
 import { useCodeViewerFeatures } from '@/hooks/use-code-viewer'
 
 const DEFAULT_TREE_PANE_WIDTH = 240
@@ -708,14 +707,13 @@ const TraceDetailPane = memo(function TraceDetailPane({ span }: { span: TraceSpa
     <div className='flex min-h-0 flex-1 flex-col gap-3 overflow-y-auto px-3.5 pt-3 pb-4'>
       <div className='flex items-start gap-2'>
         {!isIterationType(span.type) && (
-          <div
-            className='mt-[2px] flex size-[18px] flex-shrink-0 items-center justify-center overflow-hidden rounded-sm [&_img]:size-full'
-            style={{ background: bgColor }}
-          >
-            {BlockIcon && (
-              <BlockIcon className={cn('size-[12px]', getTileIconColorClass(bgColor))} />
-            )}
-          </div>
+          <BlockTile
+            blockType={span.type?.toLowerCase() ?? ''}
+            icon={BlockIcon ?? undefined}
+            bgColor={bgColor}
+            size='lg'
+            className='mt-[2px]'
+          />
         )}
         <div className='flex min-w-0 flex-1 flex-col gap-0.5'>
           <h3

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/editor.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
-import { Button, ChipTag, DashedDividerLine, FieldDivider, Loader, Tooltip } from '@sim/emcn'
+import { Button, DashedDividerLine, FieldDivider, Loader, Tooltip } from '@sim/emcn'
 import {
   BookOpen,
   Check,
@@ -12,7 +12,6 @@ import {
   SquareArrowUpRight,
   Unlock,
 } from '@sim/emcn/icons'
-import { getWorkflowTypeAccent } from '@sim/workflow-renderer'
 import type { BlockRetryConfig } from '@sim/workflow-types/workflow'
 import { isEqual } from 'es-toolkit'
 import { useParams } from 'next/navigation'
@@ -54,8 +53,7 @@ import {
   isBlockProtected,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/utils/block-protection-utils'
 import { PreviewWorkflow } from '@/app/workspace/[workspaceId]/w/components/preview'
-import { hasBlockAccent } from '@/blocks/accent'
-import { isLightTileColor } from '@/blocks/icon-color'
+import { BlockTile } from '@/blocks/block-tile'
 import { getBlock } from '@/blocks/registry'
 import { useFolderMap } from '@/hooks/queries/folders'
 import { isWorkflowEffectivelyLocked } from '@/hooks/queries/utils/folder-tree'
@@ -69,18 +67,6 @@ import { useWorkflowStore } from '@/stores/workflows/workflow/store'
 /** Stable empty object to avoid creating new references */
 const EMPTY_SUBBLOCK_VALUES = {} as Record<string, any>
 
-/**
- * Icon component for rendering block icons.
- *
- * @param icon - The icon component to render
- * @param className - Optional CSS classes
- * @returns Rendered icon or null if no icon provided
- */
-const IconComponent = ({ icon: Icon, className }: { icon: any; className?: string }) => {
-  if (!Icon) return null
-  return <Icon className={className} />
-}
-
 /**
  * Editor panel component.
  * Provides editor configuration and customization options for the workflow.
@@ -107,8 +93,6 @@ export function Editor() {
   const currentWorkflow = useCurrentWorkflow()
   const currentBlock = currentBlockId ? currentWorkflow.getBlockById(currentBlockId) : null
   const blockConfig = currentBlock ? getBlock(currentBlock.type) : null
-  const typeAccent = getWorkflowTypeAccent(currentBlock?.type ?? '')
-  const isIntegration = blockConfig != null && !hasBlockAccent(blockConfig.type)
   const title = currentBlock?.name || 'Editor'
   const isBlockNameSearchHighlighted =
     activeSearchTarget?.targetKind === 'block-name' && activeSearchTarget.blockId === currentBlockId
@@ -440,21 +424,8 @@ export function Editor() {
         {/* Header */}
         <div className='mx-[-1px] flex flex-shrink-0 items-center justify-between rounded-none border border-[var(--border)] bg-[var(--surface-4)] px-3 py-1.5'>
           <div className='flex min-w-0 flex-1 items-center gap-2'>
-            {(blockConfig || isSubflow) && (
-              <ChipTag
-                variant={isIntegration ? 'brand' : typeAccent.variant}
-                tone={isIntegration ? undefined : typeAccent.tone}
-                brandColor={isIntegration ? blockConfig.bgColor : undefined}
-                brandForeground={
-                  isIntegration && isLightTileColor(blockConfig.bgColor) ? 'dark' : 'light'
-                }
-                className='size-[18px] justify-center px-0'
-              >
-                <IconComponent
-                  icon={isSubflow ? subflowConfig?.icon : blockConfig?.icon}
-                  className='size-[12px]'
-                />
-              </ChipTag>
+            {currentBlock && (blockConfig || isSubflow) && (
+              <BlockTile blockType={currentBlock.type} size='lg' />
             )}
             {isRenaming ? (
               <input

apps/sim/app/workspace/[workspaceId]/w/components/preview/components/preview-editor/preview-editor.tsx

@@ -21,9 +21,7 @@ import {
   ChevronUp,
   Clipboard,
   Expand,
-  Repeat,
   Search,
-  Split,
   SquareArrowUpRight,
   X,
 } from '@sim/emcn/icons'
@@ -46,8 +44,7 @@ import { PreviewWorkflow } from '@/app/workspace/[workspaceId]/w/components/prev
 import { useContextMenu } from '@/app/workspace/[workspaceId]/w/components/sidebar/hooks'
 import { getBlock } from '@/blocks'
 import { BlockTile } from '@/blocks/block-tile'
-import { getTileIconColorClass } from '@/blocks/icon-color'
-import type { BlockConfig, BlockIcon, SubBlockConfig, SubBlockType } from '@/blocks/types'
+import type { BlockConfig, SubBlockConfig, SubBlockType } from '@/blocks/types'
 import { normalizeName } from '@/executor/constants'
 import { navigatePath } from '@/executor/variables/resolvers/reference'
 import { useWorkflowState } from '@/hooks/queries/workflows'
@@ -533,20 +530,6 @@ function ConnectionsSection({
   )
 }
 
-/**
- * Icon component for rendering block icons
- */
-function IconComponent({
-  icon: Icon,
-  className,
-}: {
-  icon: BlockIcon | undefined
-  className?: string
-}) {
-  if (!Icon) return null
-  return <Icon className={className} />
-}
-
 /**
  * Configuration for subflow types (loop and parallel) - matches use-subflow-editor.ts
  */
@@ -1083,20 +1066,13 @@ function PreviewEditorContent({
 
   if (isSubflow) {
     const isLoop = block.type === 'loop'
-    const SubflowIcon = isLoop ? Repeat : Split
-    const subflowBgColor = isLoop ? '#2FB3FF' : '#FEE12B'
     const subflowName = block.name || (isLoop ? 'Loop' : 'Parallel')
 
     return (
       <div className='relative flex h-full w-full flex-col overflow-hidden border-[var(--border)] border-l bg-[var(--surface-1)]'>
         {/* Header - styled like subflow header */}
         <div className='mx-[-1px] flex flex-shrink-0 items-center gap-2 rounded-b-[4px] border-[var(--border)] border-x border-b bg-[var(--surface-4)] px-3 py-1.5'>
-          <div
-            className='flex size-[18px] flex-shrink-0 items-center justify-center rounded-sm'
-            style={{ backgroundColor: subflowBgColor }}
-          >
-            <SubflowIcon className={cn('size-[12px]', getTileIconColorClass(subflowBgColor))} />
-          </div>
+          <BlockTile blockType={block.type} size='lg' />
           <span className='min-w-0 flex-1 truncate text-[var(--text-primary)] text-sm'>
             {subflowName}
           </span>
@@ -1183,17 +1159,7 @@ function PreviewEditorContent({
     <div className='relative flex h-full w-full flex-col overflow-hidden border-[var(--border)] border-l bg-[var(--surface-1)]'>
       {/* Header - styled like editor */}
       <div className='mx-[-1px] flex flex-shrink-0 items-center gap-2 rounded-b-[4px] border-[var(--border)] border-x border-b bg-[var(--surface-4)] px-3 py-1.5'>
-        {block.type !== 'note' && (
-          <div
-            className='flex size-[18px] flex-shrink-0 items-center justify-center overflow-hidden rounded-sm [&_img]:size-full'
-            style={{ backgroundColor: blockConfig.bgColor }}
-          >
-            <IconComponent
-              icon={blockConfig.icon}
-              className={cn('size-[12px]', getTileIconColorClass(blockConfig.bgColor))}
-            />
-          </div>
-        )}
+        {block.type !== 'note' && <BlockTile blockType={block.type} size='lg' />}
         <span className='min-w-0 flex-1 truncate text-[var(--text-primary)] text-sm'>
           {block.name || blockConfig.name}
         </span>

apps/sim/blocks/block-tile.tsx

@@ -6,12 +6,23 @@ import { WorkflowTypeIcon } from '@sim/workflow-renderer'
 import { getBlockTileColor, getBlockTileIcon, hasBlockAccent } from '@/blocks/accent'
 import { getTileIconColorClass } from '@/blocks/icon-color'
 
-/** Slot sizes the tile ships in: the canvas 16px chip, or 14px for dense rows. */
+/**
+ * Slot sizes the tile ships in: the 18px detail header, the canvas 16px chip,
+ * or 14px for dense rows.
+ */
 const TILE_SIZE_CLASS = {
+  lg: 'size-[18px]',
   md: 'size-[16px]',
   sm: 'size-[14px]',
 } as const
 
+/** Icon drawn inside each slot. Only the header tile takes the larger glyph. */
+const TILE_ICON_SIZE_CLASS = {
+  lg: 'size-[12px]',
+  md: 'size-[10px]',
+  sm: 'size-[10px]',
+} as const
+
 export interface BlockTileProps extends Omit<HTMLAttributes<HTMLElement>, 'children' | 'style'> {
   /**
    * Block the tile represents; decides whether it takes the canvas role accent.
@@ -54,9 +65,18 @@ export function BlockTile({
 }: BlockTileProps) {
   const Icon = icon ?? (blockType ? getBlockTileIcon(blockType) : undefined)
   const sizeClass = cn(TILE_SIZE_CLASS[size], className)
+  const iconSizeClass = TILE_ICON_SIZE_CLASS[size]
 
   if (blockType && Icon && hasBlockAccent(blockType)) {
-    return <WorkflowTypeIcon type={blockType} Icon={Icon} className={sizeClass} {...props} />
+    return (
+      <WorkflowTypeIcon
+        type={blockType}
+        Icon={Icon}
+        className={sizeClass}
+        iconClassName={iconSizeClass}
+        {...props}
+      />
+    )
   }
 
   const fill = bgColor ?? (blockType ? getBlockTileColor(blockType) : undefined)
@@ -70,7 +90,8 @@ export function BlockTile({
       {Icon ? (
         <Icon
           className={cn(
-            'size-[10px] transition-transform duration-100 group-hover:scale-110',
+            iconSizeClass,
+            'transition-transform duration-100 group-hover:scale-110',
             getTileIconColorClass(fill, true)
           )}
         />

packages/workflow-renderer/src/workflow-block/workflow-block-view.tsx

@@ -183,10 +183,18 @@ export const getWorkflowTypeAccent = (type: string) =>
 export interface WorkflowTypeIconProps extends Omit<HTMLAttributes<HTMLSpanElement>, 'children'> {
   type: string
   Icon: ComponentType<{ className?: string }>
+  /** Overrides the glyph size when the chip is rendered at a non-default slot. */
+  iconClassName?: string
 }
 
 /** Shared compact core-block icon used by workflow discovery surfaces. */
-export function WorkflowTypeIcon({ type, Icon, className, ...props }: WorkflowTypeIconProps) {
+export function WorkflowTypeIcon({
+  type,
+  Icon,
+  className,
+  iconClassName,
+  ...props
+}: WorkflowTypeIconProps) {
   const typeAccent = getWorkflowTypeAccent(type)
 
   return (
@@ -197,7 +205,12 @@ export function WorkflowTypeIcon({ type, Icon, className, ...props }: WorkflowTy
       data-workflow-type-icon={type}
       {...props}
     >
-      <Icon className='size-[10px] transition-transform duration-100 group-hover:scale-110' />
+      <Icon
+        className={cn(
+          'size-[10px] transition-transform duration-100 group-hover:scale-110',
+          iconClassName
+        )}
+      />
     </ChipTag>
   )
 }