By world:

AA-1111 is a special Dimenller classification style regarding worlds. Some tags have it and some don't, which depends on how complicated I like to make things for myself--

By setting:

Sometimes I make separate tags for regions/groups of people originating from one dimension. Sometimes they even correspond with my folders!

FW-4443

AH-2468

BK-0876

VI-3633

By species:

Organised alphabetically.

Overarching Categories

Extra Qualities

By gender:

Transwomen and transmen are included in the male/female tags respectively.

By colour:

Specific colours are used to signify certain characters. They can be symbolic, aesthetic and (non)restrictive.

By hair colour:

Cowlicks are included as a tag because I like making them haha-

By eye colour:

For personal use.

By alignment:

Based on the Dragons & Dungeons 5e classifications.

By class:

Based on Dungeons & Dragons 5e classes. I've slowly been getting into actual D&D so I now have a reason to categorise these woo!

By magic type:

So before I was able to actually play D&D, I lightly knew some of its rules as I made a world supposedly based on it. Because of that I interpreted magic as more elemental-based instead of class-based, which is why many (not all!) of my characters have elemental evocation spells or at least an expanded version of that.

General Categorisation

Schools of Magic

Element Types

By family:

Only important families with many members are included.

By traits:

Be it physical or character traits, I like categorising things and this is my way of perpetuating the cycle of madness. Also I forget to draw people's freckles and tails, so this might help.

Character Traits

Body Types

Special Characteristics

Clothing Accessories

By designer:

For my own designs and my adopted children.

By utilities:

Miscellaneous tags I use for different kinds of purposes.