Apparently the Star Wars Saga Edition Roleplaying Game published an expansion sourcebook title The Unknown Regions which provides quite a bit of information about the species (since there were rules for making them playable and additional background/physical description provided).  Here's the entry and source:

Altiri are a Near-Human Species that evolved on the eastern continent of the planet they call Altiria. Originally wandering nomads, Altiri developed a society that places great importance on individual development of one's intellect and spirituality. Through artistic expression and cultural awareness, Altiri focus on expanding their knowledge of the universe by peaceful, scientific means. Their perpetual war with the Anarrians is a glaring exception to this lofty goal.

Most Altiri unite under the banner of the Altirian Republic, a representative democracy that rules most of the eastern continent and several island chains around it. The republic's driving goal is the promotion of the Altiri , their development into the world's most advanced society, and their elevation to rulers of the planet. Republic members fervently state that they seek a peaceful existence in which knowledge and the arts are prized over all else, and many facets of their society support this ideal. At the same time, the republic maintains a sizable military force, the purpose of which is to combat the Anarrians.

Prior to their discovery of the Anarrians, the Altiri primarily worshipped the goddess Shalla, bringer of peace and good fortune. While less prominent in the present day, she is still worshipped to a large degree, and the Altiri go so far as to name their colony on Priva after her.

Altiri Characteristicsedit | edit sourceEdit

[1] Personality: The Altiri are a Species of scientific progress and cultural inspiration. Their feud with the Anarrians belies an otherwise friendly relationship with other sentients, a stack contrast that can be jarring to outsiders. Altiri place a high value on individualism, encouraging the populace to create their own accomplishments and overcome the bar set by the previous generation.

Physical Description: Altiri are on average 1.7 meters in height. Their skin shades vary from light blue to deep indigo, and their hair color includes pure white and darker hues such as purple and black.

Average Height/Weight: A typical Altiri stands at 1.7 meters tall and weighs 60 kilograms.

Age Groups: Altiri age at the following stages:

1-9 Years 10-17 Years 18-49 Years 50-64 Years 65-79 Years 80+ Years

Homeworld: Altiri live on the contested world of Altiria/Anarris (Or to the Altiri, simply Altiria), an industrial world in constant conflict with itself between the Altiri and the Anarrians

Languages: Altiri use their own language of Altirish to communicate between themselves. The use of Anarrese is considered rude and is looked upon poorly. 

Example Names: Cediri, Prival, Shalla, Valtova. 

Adventurers: Altiri are often recruited to work as intelligence agents and scientists for private interests and the Altirian Republic. While well suited to work as ambassadors and diplomats, the Altiri's feud with the Anarrians strains that credibility to other Species. Most Altiri that travel offworld do so as Technicians or Nobles.

Altiri Species Traitsedit | edit sourceEdit

Altiri share the following Species Traits:

  • Ability Modifiers: Altiri have no Ability Score adjustments.
  • Medium Size: As Medium creatures, Altiri have no special bonuses or penalties due to their size.
  • Speed: Altiri have a base speed of 6 squares.
  • Visually Striking: Altiri have a visually surprising or stunning appearance. Their Charisma bonus is doubled when they use the Persuasion skill on Humans and Near-Humans.
  • Bonus Trained Skill: Altiri are versatile and accomplished at many tasks. An Altiri chooses one additional Trained Skill at 1st level. The skill must be chosen from the character's list of Class Skills.
  • Automatic Languages: All Altiri can speak, read, and write both Basic and Altirish.

You know, if anyone wants to update this article.  Sorry, no time for me to do it atm. 01:59, September 2, 2020 (UTC)

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