diff --git a/src/components/fields/Field_ColorPicker.vue b/src/components/fields/Field_ColorPicker.vue
index fef9c9d..2d1043f 100644
--- a/src/components/fields/Field_ColorPicker.vue
+++ b/src/components/fields/Field_ColorPicker.vue
@@ -70,17 +70,17 @@ import { I_ExtraFields } from "src/interfaces/I_Blueprint"
 })
 export default class Field_ColorPicker extends BaseClass {
   @Prop({ default: [] }) readonly inputDataBluePrint!: I_ExtraFields
-  @Prop({ default: null }) readonly inputDataValue!: null|number
+  @Prop({ default: null }) readonly inputDataValue!: string
   @Prop() readonly editMode!: boolean
   @Prop() readonly isNew!: boolean
 
   changedInput = false
-  localInput: null|number = null
+  localInput = ""
 
   @Emit()
   signalInput () {
     this.changedInput = true
-    return this.localInput
+    return this.localInput.trim()
   }
 
   get inputIcon () {
diff --git a/src/components/fields/Field_List.vue b/src/components/fields/Field_List.vue
index 5eb38c5..994a4ad 100644
--- a/src/components/fields/Field_List.vue
+++ b/src/components/fields/Field_List.vue
@@ -99,6 +99,7 @@
 import { Component, Emit, Prop, Watch } from "vue-property-decorator"
 
 import BaseClass from "src/BaseClass"
+import { extend } from "quasar"
 
 import { I_ExtraFields } from "src/interfaces/I_Blueprint"
 
@@ -160,7 +161,21 @@ export default class Field_List extends BaseClass {
   @Emit()
   signalInput () {
     this.changedInput = true
-    return this.localInput
+
+    const dataCopy: {
+      value: string
+      affix?: string
+    }[] = extend(true, [], this.localInput)
+
+    const returnValue = dataCopy.map(e => {
+      e.value = e.value.trim()
+      if (e.affix) {
+        e.affix = e.affix.trim()
+      }
+      return e
+    })
+
+    return returnValue
   }
 
   addNewInput () {
diff --git a/src/components/fields/Field_Tags.vue b/src/components/fields/Field_Tags.vue
index e653a68..f74d526 100644
--- a/src/components/fields/Field_Tags.vue
+++ b/src/components/fields/Field_Tags.vue
@@ -15,7 +15,7 @@
     >
      <q-chip
       v-for="(input,index) in localInput" :key="index"
-      color="accent" text-color="dark" class="text-bold">
+      color="gunmetal-light" text-color="satin-sheen-gold-light" class="text-weight-medium">
         {{input}}
       </q-chip>
     </div>
@@ -29,7 +29,7 @@
       menu-anchor="bottom middle"
       menu-self="top middle"
       class="tagSelect"
-      :options="allTags"
+      :options="filteredTags"
       use-input
       outlined
       use-chips
@@ -38,8 +38,11 @@
       new-value-mode="add"
       multiple
       v-model="localInput"
+      @new-value="addNewValue"
       @input="signalInput"
       @keydown="signalInput"
+      error-message="This tag is already present in the selection."
+      :error="tagAlreadyExists"
     >
       <template v-slot:selected-item="scope">
         <q-chip
@@ -88,11 +91,12 @@ export default class Field_Tags extends BaseClass {
   @Prop() readonly editMode!: boolean
 
   changedInput = false
-  localInput = []
+  localInput: string[] = []
 
   @Watch("inputDataValue", { deep: true, immediate: true })
   reactToInputChanges () {
     this.localInput = (this.inputDataValue) ? this.inputDataValue : []
+    this.buildTagList().catch(e => console.log(e))
   }
 
   @Watch("inputDataBluePrint", { deep: true, immediate: true })
@@ -110,6 +114,8 @@ export default class Field_Tags extends BaseClass {
 
   allTags: string[] = []
 
+  filteredTags: string[] = []
+
   async defocusSelectRef () {
     await this.$nextTick()
     /*eslint-disable */
@@ -118,11 +124,33 @@ export default class Field_Tags extends BaseClass {
     /* eslint-enable */
   }
 
+  tagAlreadyExists = false
+
+  addNewValue (val: string) {
+    const formattedNewTag = val.toLowerCase().trim()
+
+    const tagAlreadyExistsInList = (this.allTags.find(tag => tag.toLowerCase() === formattedNewTag))
+
+    const tagAlreadyExistsAttached = (this.localInput.find(tag => tag.toLowerCase() === formattedNewTag))
+
+    if (!tagAlreadyExistsInList) {
+      this.allTags.push(val)
+    }
+
+    if (!tagAlreadyExistsAttached) {
+      this.localInput.push(val)
+    }
+
+    if (tagAlreadyExistsInList && tagAlreadyExistsAttached) {
+      this.tagAlreadyExists = true
+    }
+  }
+
   filterFn (val: string, update: (fn: any) => void) {
     if (val === "") {
       update(() => {
-        if (this.inputDataBluePrint?.predefinedSelectValues) {
-          this.allTags = this.inputDataBluePrint.predefinedSelectValues
+        if (this.allTags) {
+          this.filteredTags = this.allTags
         }
         this.defocusSelectRef().catch(e => console.log(e))
       })
@@ -130,9 +158,9 @@ export default class Field_Tags extends BaseClass {
     }
 
     update(() => {
-      if (this.inputDataBluePrint?.predefinedSelectValues) {
+      if (this.allTags) {
         const needle = val.toLowerCase()
-        this.allTags = this.inputDataBluePrint.predefinedSelectValues.filter(v => v.toLowerCase().indexOf(needle) > -1)
+        this.filteredTags = this.allTags.filter(v => v.toLowerCase().indexOf(needle) > -1)
       }
       this.defocusSelectRef().catch(e => console.log(e))
     })
@@ -144,6 +172,7 @@ export default class Field_Tags extends BaseClass {
 
   @Emit()
   signalInput () {
+    this.tagAlreadyExists = false
     this.changedInput = true
     return this.localInput
   }
diff --git a/src/components/fields/Field_Text.vue b/src/components/fields/Field_Text.vue
index 2800ac5..61c33d3 100644
--- a/src/components/fields/Field_Text.vue
+++ b/src/components/fields/Field_Text.vue
@@ -71,7 +71,7 @@ export default class Field_Text extends BaseClass {
   @Emit()
   signalInput () {
     this.changedInput = true
-    return this.localInput
+    return this.localInput.trim()
   }
 
   get toolTip () {
diff --git a/src/components/fields/Field_Wysiwyg.vue b/src/components/fields/Field_Wysiwyg.vue
index b9d6b69..f1f4747 100644
--- a/src/components/fields/Field_Wysiwyg.vue
+++ b/src/components/fields/Field_Wysiwyg.vue
@@ -56,7 +56,7 @@ export default class Field_Wysiwyg extends BaseClass {
   @Emit()
   signalInput () {
     this.changedInput = true
-    return this.localInput
+    return this.localInput.trim()
   }
 
   get toolTip () {
diff --git a/src/css/quasar.variables.scss b/src/css/quasar.variables.scss
index 8dbb441..c844c89 100644
--- a/src/css/quasar.variables.scss
+++ b/src/css/quasar.variables.scss
@@ -31,6 +31,7 @@ $customColors: (
   'ruby-red': #f72e43,
   'satin-sheen-gold': #d7ac47,
   'satin-sheen-gold-dark': darken(#d7ac47, 12.5),
+  'satin-sheen-gold-light': lighten(#d7ac47, 7.5),
   'gainsboro': #dde4e4,
   'cultured': #f5f5f5
 );
diff --git a/src/documents/changeLog.md b/src/documents/changeLog.md
index a2e1894..54f340d 100644
--- a/src/documents/changeLog.md
+++ b/src/documents/changeLog.md
@@ -17,6 +17,7 @@
 - Added a missing row of connected "Religions/Teachings" (connected, ally and enemy) to the "Religions/Teachings" document type
 - Added a missing row of connected "Magic/Spell" (connected, ally and enemy) to the "Magic/Spell" document type
 - Fixed an occasional wrong click register on the document tree (opening document instead of expanding/collapsing)
+- Fixed non-functional whitespace triming for multiple document fields upon filling in input
 - Fixed the "Name" field disappearing upon full deletion of text
 - Fixed a bug with single/multi-select fields working unintuitively for adding new values (eg: Character personality traits field or Sex field)
 - Fixed a tiny glitch when the hierarchical tree arrow was sometimes creating new documents instead of opening the category
@@ -28,7 +29,6 @@
 - Fixed a bug with a full-screen text editor overlapping the menu
 - Fixed a bug where list-typed fields were properly saving temporary data when switching between tabs in the note fields
 - Fixed broken padding of the document in "Chapters" and "Lore notes/Other notes"
-- Fixed a broken field "Practitioners/Engineers" in the category "Sciences/Technologies"
 - Fixed a typo in the "Connected Locations" field inside the "Magic/Spell" document type
 - Fixed a visual glitch with icons sometimes "bouncing" or "flickering" when hovered over with the mouse
 
diff --git a/src/scripts/databaseManager/blueprints/chapters.ts b/src/scripts/databaseManager/blueprints/chapters.ts
index d0f8986..4ae1d12 100644
--- a/src/scripts/databaseManager/blueprints/chapters.ts
+++ b/src/scripts/databaseManager/blueprints/chapters.ts
@@ -74,7 +74,13 @@ export const chaptersBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/characters.ts b/src/scripts/databaseManager/blueprints/characters.ts
index 1b14d4a..ccb96a4 100644
--- a/src/scripts/databaseManager/blueprints/characters.ts
+++ b/src/scripts/databaseManager/blueprints/characters.ts
@@ -74,7 +74,13 @@ export const charactersBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/currencies.ts b/src/scripts/databaseManager/blueprints/currencies.ts
index b26c3e1..fecb147 100644
--- a/src/scripts/databaseManager/blueprints/currencies.ts
+++ b/src/scripts/databaseManager/blueprints/currencies.ts
@@ -74,7 +74,13 @@ export const currenciesBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/events.ts b/src/scripts/databaseManager/blueprints/events.ts
index c3f6ab6..fab64e6 100644
--- a/src/scripts/databaseManager/blueprints/events.ts
+++ b/src/scripts/databaseManager/blueprints/events.ts
@@ -74,7 +74,13 @@ export const eventsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/items.ts b/src/scripts/databaseManager/blueprints/items.ts
index 3a16ca6..adf108f 100644
--- a/src/scripts/databaseManager/blueprints/items.ts
+++ b/src/scripts/databaseManager/blueprints/items.ts
@@ -74,7 +74,13 @@ export const itemsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/languages.ts b/src/scripts/databaseManager/blueprints/languages.ts
index 93d3500..87a315b 100644
--- a/src/scripts/databaseManager/blueprints/languages.ts
+++ b/src/scripts/databaseManager/blueprints/languages.ts
@@ -74,7 +74,13 @@ export const languagesBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/locations.ts b/src/scripts/databaseManager/blueprints/locations.ts
index c81a72d..7253769 100644
--- a/src/scripts/databaseManager/blueprints/locations.ts
+++ b/src/scripts/databaseManager/blueprints/locations.ts
@@ -74,7 +74,13 @@ export const locationsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/loreNotes.ts b/src/scripts/databaseManager/blueprints/loreNotes.ts
index 50dafc0..d4031ab 100644
--- a/src/scripts/databaseManager/blueprints/loreNotes.ts
+++ b/src/scripts/databaseManager/blueprints/loreNotes.ts
@@ -74,7 +74,13 @@ export const loreNotesBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/magic.ts b/src/scripts/databaseManager/blueprints/magic.ts
index 3848a58..cf1f948 100644
--- a/src/scripts/databaseManager/blueprints/magic.ts
+++ b/src/scripts/databaseManager/blueprints/magic.ts
@@ -74,7 +74,13 @@ export const magicBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/myths.ts b/src/scripts/databaseManager/blueprints/myths.ts
index f1fe70d..b164403 100644
--- a/src/scripts/databaseManager/blueprints/myths.ts
+++ b/src/scripts/databaseManager/blueprints/myths.ts
@@ -74,7 +74,13 @@ export const mythsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/politicalGroups.ts b/src/scripts/databaseManager/blueprints/politicalGroups.ts
index cc4216d..610bf06 100644
--- a/src/scripts/databaseManager/blueprints/politicalGroups.ts
+++ b/src/scripts/databaseManager/blueprints/politicalGroups.ts
@@ -74,7 +74,13 @@ export const politicalGroupsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/races.ts b/src/scripts/databaseManager/blueprints/races.ts
index 02f0e42..6ea2f0b 100644
--- a/src/scripts/databaseManager/blueprints/races.ts
+++ b/src/scripts/databaseManager/blueprints/races.ts
@@ -74,7 +74,13 @@ export const racesBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/religions.ts b/src/scripts/databaseManager/blueprints/religions.ts
index 218ce0e..1c21dc7 100644
--- a/src/scripts/databaseManager/blueprints/religions.ts
+++ b/src/scripts/databaseManager/blueprints/religions.ts
@@ -74,7 +74,13 @@ export const religionsBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/src/scripts/databaseManager/blueprints/scienceTechnology.ts b/src/scripts/databaseManager/blueprints/scienceTechnology.ts
index aca2f76..6fdf8d0 100644
--- a/src/scripts/databaseManager/blueprints/scienceTechnology.ts
+++ b/src/scripts/databaseManager/blueprints/scienceTechnology.ts
@@ -74,7 +74,13 @@ export const techBlueprint: I_Blueprint = {
       type: "tags",
       icon: "mdi-tag",
       tooltip:
-        `tags
+        `Tags are used to sort the same (or even different) document types into a custom groups based on your needs.
+        <br>
+        A document may have any number of tags, but each tag can be present only once.
+        <br>
+        This limitation also applies to any variation of lower or upper case iterations of the same tag.
+        <br>
+        Example: A tag called "Player Party" will be consider the same tag as "player party", "PlAyER PaRtY" or any similar.
         `,
       sizing: 12
     },
diff --git a/suggestionList.md b/suggestionList.md
index a72f551..5c26289 100644
--- a/suggestionList.md
+++ b/suggestionList.md
@@ -1,3 +1,7 @@
+- Tag upper/lower case issues
+- Non working tag filter
+
+---
 
 - Add "Related notes"
 - Add "Predecessors", "Successors", "Date of start", "Date of end" and "How long it lasted" fields to locations and all other groups
@@ -10,6 +14,7 @@
 - Add filtering by color and BG color (weird, but could work)
 - "Save all" keybind and "Save all and exit" option on the exiting
 
+- Considering multiple "belongs under" category listing
 - Add intelligent responsive design to the left tree and document body (maybe button to pull the left bar in and out?)
 
 ### Document & Project setting