Is there any way to make Seared Glass liquid contents more vibrant?

[Siigari]

So, I'm making this cool 13th century style area for Tinker's and Metallurgy metals. The room itself is sort of dark, lit by torches. However, how cool would it be if the room could glow the colors of the metals that are molten in the tanks?

So I did a little messing around and it turns out that Seared Glass liquids do NOT illume. So I grabbed an OpenBlocks tank and they do. Thing is the black border around the OpenBlocks tank really escapes the 13th century feel of the room.

So... how can I get the Seared Glass tanks to light up? It'd be a nicer option. Alternatively the muted color of the molten metals and some stone torches also provide some more immersion into the idea I'm creating, I feel.

Thoughts?

 

[Skvapter]

I don't really know any way they can be illuminated at all, but heck, that'd look so nice.

Did some real quick googling and discovered back in the 13th century they'd still be using Candle light (Yeah... I never did pay attention in History classes v.v" though you'd think that'd be common sense to know they'd still be using that... heheheh......), so I recommend sticking some lamps or candles around, I'd honestly go with Thaumcraft 4 candles, pretty sure they have every colour, Seen as all your room's Grey and Really dark grey, I'd recommend black candles, if they have them, I can't remember ^^" Or if you want, and if there is, see if you can get a hold of some wall lamps, or make your own chain dangling down from the ceiling connected to a lamp. The possibilities are endless really.