How can I make the crosshair attack indicator have a solid color?

I'm working on a minecraft resource pack, and I noticed the hit-delay indicator for the 1.9 combat mechanics and the crosshair change color when looking at different colors of blocks. Any chance I can disable this feature, through a json file or the like? I would prefer if I could keep the crosshair like this but it's not a big deal.

Here's what I would like it to look like all the time (except it would be better to have it be opaque):

And here's what happens when I look at other blocks, like sand. You can barely see the shade of blue it is!

My actual texture for the loading bar is solid red, and I'd like to keep it that way no matter what block I'm looking at. It would be nice if it could be fully opaque as well, but the small bit of transparency that currently affects it is fine with me.

Here are the few steps to archive this :

1. Open Minecraft's data directory. If you don't know how to do this, this screenshot will help you.

2. Go to versions/The version you use

3. Open it with WinRar (or any JAR viewer)

4. Navigate to assets/minecraft/textures/gui

5. Open icons.png with an image editor. At this point you should see this:
   

6. Paint them with red brush.

7. That's all! Save it and restart MC.