diff --git a/packages/tailwindcss/src/compat/apply-compat-hooks.ts b/packages/tailwindcss/src/compat/apply-compat-hooks.ts
index a5674bb53bf0..75b4dbafdce8 100644
--- a/packages/tailwindcss/src/compat/apply-compat-hooks.ts
+++ b/packages/tailwindcss/src/compat/apply-compat-hooks.ts
@@ -220,7 +220,7 @@ function upgradeToFullPluginSupport({
     ...userConfig,
     { config: { plugins: [darkModePlugin] }, base },
   ])
-  let { resolvedConfig: resolvedUserConfig, resetThemeKeys } = resolveConfig(
+  let { resolvedConfig: resolvedUserConfig, replacedThemeKeys } = resolveConfig(
     designSystem,
     userConfig,
   )
@@ -234,8 +234,8 @@ function upgradeToFullPluginSupport({
   // Merge the user-configured theme keys into the design system. The compat
   // config would otherwise expand into namespaces like `background-color` which
   // core utilities already read from.
-  applyConfigToTheme(designSystem, resolvedUserConfig, resetThemeKeys)
-  applyKeyframesToTheme(designSystem, resolvedUserConfig, resetThemeKeys)
+  applyConfigToTheme(designSystem, resolvedUserConfig, replacedThemeKeys)
+  applyKeyframesToTheme(designSystem, resolvedUserConfig, replacedThemeKeys)
 
   registerThemeVariantOverrides(resolvedUserConfig, designSystem)
   registerScreensConfig(resolvedUserConfig, designSystem)
diff --git a/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts b/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
index 7a7a84079701..9b415e0d1a3c 100644
--- a/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
+++ b/packages/tailwindcss/src/compat/apply-config-to-theme.test.ts
@@ -8,7 +8,7 @@ test('config values can be merged into the theme', () => {
   let theme = new Theme()
   let design = buildDesignSystem(theme)
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -54,7 +54,7 @@ test('config values can be merged into the theme', () => {
       base: '/root',
     },
   ])
-  applyConfigToTheme(design, resolvedConfig, resetThemeKeys)
+  applyConfigToTheme(design, resolvedConfig, replacedThemeKeys)
 
   expect(theme.resolve('primary', ['--color'])).toEqual('#c0ffee')
   expect(theme.resolve('sm', ['--breakpoint'])).toEqual('1234px')
@@ -84,7 +84,7 @@ test('will reset default theme values with overwriting theme values', () => {
   theme.add('--color-red-400', '#f87171')
   theme.add('--color-red-500', '#ef4444')
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -111,7 +111,7 @@ test('will reset default theme values with overwriting theme values', () => {
       base: '/root',
     },
   ])
-  applyConfigToTheme(design, resolvedConfig, resetThemeKeys)
+  applyConfigToTheme(design, resolvedConfig, replacedThemeKeys)
 
   expect(theme.namespace('--color')).toMatchInlineSnapshot(`
     Map {
@@ -128,7 +128,7 @@ test('invalid keys are not merged into the theme', () => {
   let theme = new Theme()
   let design = buildDesignSystem(theme)
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -141,7 +141,7 @@ test('invalid keys are not merged into the theme', () => {
     },
   ])
 
-  applyConfigToTheme(design, resolvedConfig, resetThemeKeys)
+  applyConfigToTheme(design, resolvedConfig, replacedThemeKeys)
 
   let entries = Array.from(theme.entries())
 
diff --git a/packages/tailwindcss/src/compat/apply-config-to-theme.ts b/packages/tailwindcss/src/compat/apply-config-to-theme.ts
index 3c8124f06e53..6e6c245118c6 100644
--- a/packages/tailwindcss/src/compat/apply-config-to-theme.ts
+++ b/packages/tailwindcss/src/compat/apply-config-to-theme.ts
@@ -22,9 +22,9 @@ function resolveThemeValue(value: unknown, subValue: string | null = null): stri
 export function applyConfigToTheme(
   designSystem: DesignSystem,
   { theme }: ResolvedConfig,
-  resetThemeKeys: Set<string>,
+  replacedThemeKeys: Set<string>,
 ) {
-  for (let resetThemeKey of resetThemeKeys) {
+  for (let resetThemeKey of replacedThemeKeys) {
     let name = keyPathToCssProperty([resetThemeKey])
     if (!name) continue
 
diff --git a/packages/tailwindcss/src/compat/apply-keyframes-to-theme.test.ts b/packages/tailwindcss/src/compat/apply-keyframes-to-theme.test.ts
index 602c9364d2ac..313d98c3c80a 100644
--- a/packages/tailwindcss/src/compat/apply-keyframes-to-theme.test.ts
+++ b/packages/tailwindcss/src/compat/apply-keyframes-to-theme.test.ts
@@ -9,7 +9,7 @@ test('keyframes can be merged into the theme', () => {
   let theme = new Theme()
   let design = buildDesignSystem(theme)
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -30,7 +30,7 @@ test('keyframes can be merged into the theme', () => {
       base: '/root',
     },
   ])
-  applyKeyframesToTheme(design, resolvedConfig, resetThemeKeys)
+  applyKeyframesToTheme(design, resolvedConfig, replacedThemeKeys)
 
   expect(toCss(design.theme.getKeyframes())).toMatchInlineSnapshot(`
     "@keyframes fade-in {
@@ -70,7 +70,7 @@ test('will append to the default keyframes with new keyframes', () => {
     ]),
   )
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -93,7 +93,7 @@ test('will append to the default keyframes with new keyframes', () => {
       base: '/root',
     },
   ])
-  applyKeyframesToTheme(design, resolvedConfig, resetThemeKeys)
+  applyKeyframesToTheme(design, resolvedConfig, replacedThemeKeys)
 
   expect(toCss(design.theme.getKeyframes())).toMatchInlineSnapshot(`
     "@keyframes slide-in {
diff --git a/packages/tailwindcss/src/compat/apply-keyframes-to-theme.ts b/packages/tailwindcss/src/compat/apply-keyframes-to-theme.ts
index f4868d87a702..7f853a0d45e1 100644
--- a/packages/tailwindcss/src/compat/apply-keyframes-to-theme.ts
+++ b/packages/tailwindcss/src/compat/apply-keyframes-to-theme.ts
@@ -6,7 +6,7 @@ import { objectToAst } from './plugin-api'
 export function applyKeyframesToTheme(
   designSystem: DesignSystem,
   resolvedConfig: Pick<ResolvedConfig, 'theme'>,
-  resetThemeKeys: Set<string>,
+  replacedThemeKeys: Set<string>,
 ) {
   for (let rule of keyframesToRules(resolvedConfig)) {
     designSystem.theme.addKeyframes(rule)
diff --git a/packages/tailwindcss/src/compat/config/resolve-config.test.ts b/packages/tailwindcss/src/compat/config/resolve-config.test.ts
index e0ee595cc975..4bcd4feb9a25 100644
--- a/packages/tailwindcss/src/compat/config/resolve-config.test.ts
+++ b/packages/tailwindcss/src/compat/config/resolve-config.test.ts
@@ -6,7 +6,7 @@ import { resolveConfig } from './resolve-config'
 test('top level theme keys are replaced', () => {
   let design = buildDesignSystem(new Theme())
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -53,13 +53,13 @@ test('top level theme keys are replaced', () => {
       },
     },
   })
-  expect(resetThemeKeys).toEqual(new Set(['colors', 'fontFamily']))
+  expect(replacedThemeKeys).toEqual(new Set(['colors', 'fontFamily']))
 })
 
 test('theme can be extended', () => {
   let design = buildDesignSystem(new Theme())
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -99,7 +99,7 @@ test('theme can be extended', () => {
       },
     },
   })
-  expect(resetThemeKeys).toEqual(new Set(['colors', 'fontFamily']))
+  expect(replacedThemeKeys).toEqual(new Set(['colors', 'fontFamily']))
 })
 
 test('theme keys can reference other theme keys using the theme function regardless of order', ({
@@ -107,7 +107,7 @@ test('theme keys can reference other theme keys using the theme function regardl
 }) => {
   let design = buildDesignSystem(new Theme())
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -172,7 +172,7 @@ test('theme keys can reference other theme keys using the theme function regardl
       },
     },
   })
-  expect(resetThemeKeys).toEqual(new Set(['colors', 'placeholderColor']))
+  expect(replacedThemeKeys).toEqual(new Set(['colors', 'placeholderColor']))
 })
 
 test('theme keys can read from the CSS theme', () => {
@@ -181,7 +181,7 @@ test('theme keys can read from the CSS theme', () => {
 
   let design = buildDesignSystem(theme)
 
-  let { resolvedConfig, resetThemeKeys } = resolveConfig(design, [
+  let { resolvedConfig, replacedThemeKeys } = resolveConfig(design, [
     {
       config: {
         theme: {
@@ -250,7 +250,7 @@ test('theme keys can read from the CSS theme', () => {
       },
     },
   })
-  expect(resetThemeKeys).toEqual(
+  expect(replacedThemeKeys).toEqual(
     new Set(['colors', 'accentColor', 'placeholderColor', 'caretColor', 'transitionColor']),
   )
 })
diff --git a/packages/tailwindcss/src/compat/config/resolve-config.ts b/packages/tailwindcss/src/compat/config/resolve-config.ts
index cd7fbfad9070..9b09ad63fa77 100644
--- a/packages/tailwindcss/src/compat/config/resolve-config.ts
+++ b/packages/tailwindcss/src/compat/config/resolve-config.ts
@@ -11,8 +11,6 @@ import {
   type UserConfig,
 } from './types'
 
-type ResetThemeKeys = Set<string>
-
 export interface ConfigFile {
   path?: string
   base: string
@@ -44,7 +42,7 @@ let minimal: ResolvedConfig = {
 export function resolveConfig(
   design: DesignSystem,
   files: ConfigFile[],
-): { resolvedConfig: ResolvedConfig; resetThemeKeys: ResetThemeKeys } {
+): { resolvedConfig: ResolvedConfig; replacedThemeKeys: Set<string> } {
   let ctx: ResolutionContext = {
     design,
     configs: [],
@@ -83,7 +81,7 @@ export function resolveConfig(
   }
 
   // Merge themes
-  let resetThemeKeys = mergeTheme(ctx)
+  let replacedThemeKeys = mergeTheme(ctx)
 
   return {
     resolvedConfig: {
@@ -92,7 +90,7 @@ export function resolveConfig(
       theme: ctx.theme as ResolvedConfig['theme'],
       plugins: ctx.plugins,
     },
-    resetThemeKeys,
+    replacedThemeKeys,
   }
 }
 
@@ -183,8 +181,8 @@ function extractConfigs(ctx: ResolutionContext, { config, base, path }: ConfigFi
   ctx.configs.push(config)
 }
 
-function mergeTheme(ctx: ResolutionContext): ResetThemeKeys {
-  let resetThemeKeys: Set<string> = new Set()
+function mergeTheme(ctx: ResolutionContext): Set<string> {
+  let replacedThemeKeys: Set<string> = new Set()
 
   let themeFn = createThemeFn(ctx.design, () => ctx.theme, resolveValue)
   let theme = Object.assign(themeFn, {
@@ -209,7 +207,7 @@ function mergeTheme(ctx: ResolutionContext): ResetThemeKeys {
       if (key === 'extend') {
         continue
       }
-      resetThemeKeys.add(key)
+      replacedThemeKeys.add(key)
     }
 
     // Shallow merge themes so latest "group" wins
@@ -257,5 +255,5 @@ function mergeTheme(ctx: ResolutionContext): ResetThemeKeys {
     }
   }
 
-  return resetThemeKeys
+  return replacedThemeKeys
 }