I use modified version (my own version), it's a mixture of KoP 1.7 V3 Photo Realism and LB Photo Realism.

I use mostly KOP, but I take glowstone, diamond, gold and iron block, bed, netherack and obsidian from LB.

I also used a modified version of Sphax PureBDCraft, wher I change the glowstone to be more yellow (clearer and brighter).

It's really easy to modify your texture pack or do a mix.

Use GIMP program to open the terrain.png image of the texture pack and copy paste a block from another texture pack

or even create the one you want. You will have to zoom the image to make sure that your copy/paste is perfect.

Do not put invisible block! It's against the rules <object class="emojione" data="https://resources.enjin.com/1489581540/themes/core/images/emojione/svg/1f642.svg?0" type="image/svg+xml" standby=":-)">:-)</object>