Coloring Wood

It is quite difficult to do. Most dyes don’t penetrate very deeply into the wood. So unless you are dyeing thin veneers I think you won’t get the results you want. Perhaps using a vacuum chamber you can get deeper penetration of dye. You’ll have to experiment. You can get poplar in a light green color, although it will turn brown over time.

-- Bondo Gaposis

I have used food coloring to dye small areas of wood, limiting the spread with sealers. But to color segments of a bowl turning in advance of shaping on a lathe would be difficult to control. Perhaps using thin strips near the limit of dye penetration, then thoroughly drying before glue-up.

-- You know, this site doesn't require woodworking skills, but you should know how to write.

Have you considered SpectraPly, from Cousineau Wood Products (CWP)?

https://www.cwp-usa.com/collections/spectraply-blanks/products/spectraply-evergreen
https://www.cwp-usa.com/collections/spectraply-panels/products/spectraply-panels-green-hornet
https://www.cwp-usa.com/collections/spectraply-panels/products/spectraply-panels-holiday-cheer

It bonds well with hardwood in router bowls:

Lost track of how many I’ve made over the years. :-(0)

Woodcraft used to stock various colors and sizes. Several competitors have entered the market with similar products. CWP also produces a higher density product called Dymalux, which is a resin stabilized version. Dymalux (and the clones) does not mix well with hardwood unless epoxy adhesive is used. It is designed more for turning to avoid tear out issues on plywood the laminate. Never had any issues with Spectraply tear out making router bowls.

YMMV

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967