docs: upload Aura style variants and props (#4905)

Author: web-padawan

articles/components/upload/styling.adoc

@@ -7,6 +7,155 @@ order: 50
 ---
 = Upload Styling
 
+== Style Variants
+
+Upload supports the following style variants:
+
+[cols="1,3,1"]
+|===
+| Variant | Description | Supported by
+
+|`no-border`
+|Removes border around the upload component
+|Aura
+
+|===
+
+
+include::../_styling-section-theming-props.adoc[tag=style-properties]
+
+=== Upload Properties
+
+[cols="2,1"]
+|===
+| Property | Supported by
+
+|`--vaadin-upload-background`
+|Aura
+
+|`--vaadin-upload-border-color`
+|Aura
+
+|`--vaadin-upload-border-radius`
+|Aura
+
+|`--vaadin-upload-border-width`
+|Aura
+
+|`--vaadin-upload-drop-label-color`
+|Aura
+
+|`--vaadin-upload-drop-label-font-size`
+|Aura
+
+|`--vaadin-upload-drop-label-font-weight`
+|Aura
+
+|`--vaadin-upload-drop-label-gap`
+|Aura
+
+|`--vaadin-upload-drop-label-line-height`
+|Aura
+
+|`--vaadin-upload-gap`
+|Aura, Lumo
+
+|`--vaadin-upload-padding`
+|Aura
+
+|===
+
+=== File List Properties
+
+[cols="2,1"]
+|===
+| Property | Supported by
+
+|`--vaadin-upload-file-list-divider-color`
+|Aura
+
+|`--vaadin-upload-file-list-divider-width`
+|Aura
+
+|===
+
+=== File Properties
+
+[cols="2,1"]
+|===
+| Property | Supported by
+
+|`--vaadin-upload-file-border-radius`
+|Aura
+
+|`--vaadin-upload-file-button-background`
+|Aura
+
+|`--vaadin-upload-file-button-border-color`
+|Aura
+
+|`--vaadin-upload-file-button-border-radius`
+|Aura
+
+|`--vaadin-upload-file-button-border-width`
+|Aura
+
+|`--vaadin-upload-file-button-text-color`
+|Aura
+
+|`--vaadin-upload-file-button-padding`
+|Aura
+
+|`--vaadin-upload-file-done-color`
+|Aura
+
+|`--vaadin-upload-file-error-color`
+|Aura
+
+|`--vaadin-upload-file-error-font-size`
+|Aura
+
+|`--vaadin-upload-file-error-font-weight`
+|Aura
+
+|`--vaadin-upload-file-error-line-height`
+|Aura
+
+|`--vaadin-upload-file-gap`
+|Aura
+
+|`--vaadin-upload-file-name-color`
+|Aura
+
+|`--vaadin-upload-file-name-font-size`
+|Aura
+
+|`--vaadin-upload-file-name-font-weight`
+|Aura
+
+|`--vaadin-upload-file-name-line-height`
+|Aura
+
+|`--vaadin-upload-file-padding`
+|Aura
+
+|`--vaadin-upload-file-status-color`
+|Aura
+
+|`--vaadin-upload-file-status-font-size`
+|Aura
+
+|`--vaadin-upload-file-status-font-weight`
+|Aura
+
+|`--vaadin-upload-file-status-line-height`
+|Aura
+
+|`--vaadin-upload-file-warning-color`
+|Aura
+
+|===
+
 include::../_styling-section-intros.adoc[tag=selectors]