i rolled the floor with a firm foam roller,
Reel that's an old painters trick, Lining tape for making flames and other graphics on autos. It's a vinyl tape that comes in different widths like 1/16" to 1" avail in every size between in 16th's, i used a roll of 7/16 for this app. you just run it under your finger and on corners you just twist your finger to the desired shape and once it's on you tape with blue painters tape half over the vinyl. I use this tape first on all painting projects for fine straight lines.
here's a sample on this site but avail at local auto paint supply shops.
https://www.autobodytoolmart.com/p-11359-13973.aspx
