Can I make a skyplatform brighter?

[Nalytha]

I found a skyplatform rental that I like. However, it's a bit dark. Is there a way to make the whole box brighter? I do not mean through personal settings as I would want any visitors to see it brighter as well. 

[Rolig Loon]

Only if you have mod perms for it.  If you have mod perms, you can select it and use your editor to change colors, add Fulbright or (ick) glow, .....

[Rhonda Huntress]

You can add lights which will brighten the sourunding area

[Alwin Alcott]

it are always personal settings.

Even when you put lights around, the visitors might have turned off local lights, wearable lights... and so on.

Next to that they might have fixed windlight setting.

Their graphic card and monitor will never give the same experience as you have.