--ion-background-color | Background color of the entire app | 
--ion-background-color-rgb | Background color of the entire app, rgb format | 
--ion-text-color | Text color of the entire app | 
--ion-text-color-rgb | Text color of the entire app, rgb format | 
--ion-backdrop-color | Color of the Backdrop component | 
--ion-backdrop-opacity | Opacity of the Backdrop component | 
--ion-overlay-background-color | Background color of the overlays | 
--ion-border-color | Border color | 
--ion-box-shadow-color | Box shadow color | 
--ion-tab-bar-background | Background of the Tab Bar | 
--ion-tab-bar-background-focused | Background of the focused Tab Bar | 
--ion-tab-bar-border-color | Border color of the Tab Bar | 
--ion-tab-bar-color | Color of the Tab Bar | 
--ion-tab-bar-color-selected | Color of the selected Tab Button | 
--ion-toolbar-background | Background of the Toolbar | 
--ion-toolbar-border-color | Border color of the Toolbar | 
--ion-toolbar-color | Color of the components in the Toolbar | 
--ion-toolbar-segment-color | Color of the Segment Buttons in the Toolbar | 
--ion-toolbar-segment-color-checked | Color of the checked Segment Buttons in the Toolbar | 
--ion-toolbar-segment-background | Background of the Segment Buttons in the Toolbar | 
--ion-toolbar-segment-background-checked | Background of the Segment Buttons in the Toolbar | 
--ion-toolbar-segment-indicator-color | Color of the Segment Button indicator in the Toolbar | 
--ion-item-background | Background of the Item | 
--ion-item-border-color | Border color of the Item | 
--ion-item-color | Color of the components in the Item | 
--ion-placeholder-color | Color of the placeholder in Inputs |