BGs or songs depicting dolls or toys.

Songs that directly mention colors, or songs/maps that depict rainbows. Will not include rainbows in the context of LGBT.

BGs or songs directly mentioning clocks, dates and/or times, or celestial bodies like the moon or Sun or planets.

BGs or songs about books or with books or scrolls in them. Currently doesn't include single pices of paper or envelopes, but it could.

BGs or songs about people with wings. Can be angelic, devilish or other kinds of wings, but it must be a human or humanoid and not some kind of anthropomorphized person or someone that is normally a creature but has transformed into a humanoid shape.

Songs made by or about Vtubers.

BGs of people with uncommon features that don't involve animalistic features, such as heterochromatia, wearing eye patches, or having fanged teeth.

Maps or songs BGs depicting life in school. Does not include songs about idol groups unless it is depicting them in school outside of any context of idol songs, etc.

BGs depicting royalty or nobility in some fashion. Might re-categorize into 6.

Should go into Casual.

Maps with specific names in the title.

Bgs or songs depicting monsters or other fantastical creatures. Might be separated into outright monsters and other fantasy/mythical creatures like dragons and fairies.

BGs depicting mechas or power armor. Might also include robots in general?

BGs of single people.

BGs with three or more people.

BGs of two people.

Maps or BGs about various drinks. Water can be included, but it must be in some drinking container such as a bottle or glass.

Maps or BGs about fruits and vegetables.

Maps or songs about specific foods or meals, or displaying meals or people eating.

Maps of individual flowers or bouquets of flowers, or of petals or flowers flying in the wind or placed on the ground for aesthetics.

BGs of cats or catgirls.

BGs of people sleeping or dozing. At minimum their eyes must be closed and laying down or sitting with their heads drooped or on someone else.

BGs or songs about candies or other sweets like cakes or desserts.

Songs about or titled with body parts outside the context of holidays or other categories.

Songs/BGs of people engaging of athletic activity like running or jumping. Does not include athletic activity in the context of actual sports such as track & field or racing.

BGs of anthropomorphized animals or of human-like people with animal characteristics.

BGs with regular Earth animals in them, from pets to wild animals.

SBs of people in superhero suit, or in other suits or coverings.

BG of people in military uniform or in school uniforms. The latter may be subject to whether I think it's sufficiently cool or unique enough to be separate from a standard school uniform.

BGs of man in suits or tuxedos or otherwise dressed in very formal attire.

BGs of people in typical witch/wizard attire.

BGs of people wearing religious attire. Nun outfits, catholic/papal attire, or priest garbs.

SBs of people holding or wearing accessories, such as bows, jewelry, purses, or items like parasols/umbrellas. Might separate jewelry from this. Can be independent of other categories like Flowing Dresses if there are other items on the dress that aren't part of the dress itself.

BGs of people in pajamas or night/sleepwear. If it is not obviously pajamas, they must be wearing other kinds of clothes to sleep in or are typically worn at home in leisure.

BGs of people in maid outfits, male or female.

BGs of people wearing hats or caps of any kind.

BGs of women wearing dresses of any kind, be it casual one-pieces, elegant ball dresses, or marriage dresses. Generally speaking, they must be clearly one whole piece to be here.

BGs of people wearing festival-style clothing, such as Japanese Yuukatas/kimonos or other ceremonial clothing.

BGs of people wearing fantasy/medieval clothing, or at least can't be categorized any other way.

BGs of people wearing fantasy-style/medieval armor.

BGs of people wearing clothing that's eccentric or is meant to be worn on a music or theater stage.

BGs of people wearing casual clothing. Might also be a catch-all for apparel that doesn't fit any other category.

BGs where one or more person is topless, or an exposed chest/midsection. Does not include those in swimsuits as those go in the Summer theme, nor those who are naked or women that are topless as those go into the Osu Swim category.

Maps with the theme of Winter.

Maps with the theme of Spring.

Maps with an Autumn/fall theme. Either directly mentioning the season, have falling leaves or red/orange/yellow-colored leaves. May also include having on cold-weather clothes while not directly referencing Winter.

Songs that I couldn't determine their language while playing, and haven't yet checked the listing for their language tag.

Songs in the Spanish language.