KronHUD is very useful for me, I can move the HUD anywhere on my monitor.
But it will good if it has "Custom Crosshair" for it. And yes, can modify the texture of the Crosshair (or at least, don't replace the other's resource pack into KronHUD's default crosshair)

In my condition, GUI Scale: 2 work best for my monitor and my eyes. But the crosshair is small if I use GUI Scale 2.
If I use GUI Scale: 3, The crosshair is good enough to see (Doesn't blending with the objects) but the HUD and everything are too big.

Looking forward for future updates

Try changing option called "Scale" for the crosshair.

Ah.. sorry didn't see if there's a "Crosshair HUD" Feature on its Configuration..
But will the custom texture implemented? Or maybe can change it manually using Resource Pack (Through Optifine or something like that)

so the Crosshair can colorable too using the custom texture

For example, transparent = none, black = 0, white = 1 like UV (?)
I don't know this feature name, but if you set the color into red from the Configuration, and the texture if white will give red, the grey will give dark red. Transparent white will affect its transparency, for example transparent red
black to white for color, transparent to opaque for its alpha

Custom texture will be added next update