diff --git a/packages/core/engine/generator.ts b/packages/core/engine/generator.ts
index 4cf509a..d23a831 100644
--- a/packages/core/engine/generator.ts
+++ b/packages/core/engine/generator.ts
@@ -58,7 +58,7 @@ function replaceAtIndex(array: (number | string)[], index: number, value: string
   return newArray
 }
 
-function putAccentInRange(adjusted: UmbraAdjusted, accent: Partial<Accent> | string, input: UmbraScheme) {
+function putAccentInRange(adjusted: UmbraAdjusted, accent: Accent | string, input: UmbraScheme) {
   const isString = typeof accent === 'string'
   const color = isString ? accent : accent.color
   const insertion = input.settings?.insertion
@@ -74,7 +74,7 @@ function putAccentInRange(adjusted: UmbraAdjusted, accent: Partial<Accent> | str
 function accents(input: UmbraScheme, adjusted: UmbraAdjusted) {
   const { background, foreground } = adjusted
 
-  function gen(accent: string | Partial<Accent>) {
+  function gen(accent: string | Accent) {
     const isString = typeof accent === 'string'
 
     const name = isString ? undefined : accent.name
diff --git a/packages/core/engine/types/index.ts b/packages/core/engine/types/index.ts
index 6080b07..c01211b 100644
--- a/packages/core/engine/types/index.ts
+++ b/packages/core/engine/types/index.ts
@@ -23,10 +23,11 @@ export interface UmbraOutput {
 }
 
 export interface Accent {
-  name: string
+  name?: string
   color: string
-  shades: (number | string)[]
-  readability: number
+  shades?: (number | string)[]
+  tints?: (number | string)[]
+  readability?: number
 }
 
 export type UmbraInput = Partial<UmbraScheme>
@@ -39,13 +40,13 @@ export interface UmbraScheme extends UmbraColors {
 export interface UmbraColors {
   background: string
   foreground: string
-  accents: string | (string | Partial<Accent>)[]
+  accents: string | (string | Accent)[]
 }
 
 export interface UmbraAdjusted {
   background: Colord
   foreground: Colord
-  accents: (string | Partial<Accent>)[]
+  accents: (string | Accent)[]
 }
 
 export interface UmbraSettings {
diff --git a/packages/core/index.ts b/packages/core/index.ts
index dfa06a1..f54a0de 100644
--- a/packages/core/index.ts
+++ b/packages/core/index.ts
@@ -8,6 +8,7 @@ import type { FlattenColor, Formater, UmbraOutputs } from './engine/primitives/f
 import { attach } from './engine/primitives/attach'
 import { mostReadable, getReadability, colorMix } from './engine/primitives/color'
 import type {
+  Accent,
   UmbraScheme,
   UmbraInput,
   UmbraOutput,
@@ -35,6 +36,7 @@ export {
 }
 
 export type {
+  Accent,
   Umbra,
   UmbraScheme,
   UmbraSettings,
diff --git a/packages/nobel/src/App.vue b/packages/nobel/src/App.vue
index 261c5d0..817f298 100644
--- a/packages/nobel/src/App.vue
+++ b/packages/nobel/src/App.vue
@@ -13,17 +13,18 @@ import ButtonGroup from './components/ui/Button/ButtonGroup.vue'
 import TextScreen from './components/TextScreen.vue'
 
 import { umbra } from '@umbrajs/core'
+import type { Accent } from '@umbrajs/core'
 
 const route = useRoute()
 
 const inversed = ref(true)
 
-const warningAccent = {
+const warningAccent: Accent = {
   name: 'warning',
   color: '#ff0000'
 }
 
-const successAccent = {
+const successAccent: Accent = {
   name: 'success',
   color: '#00ff00'
 }