I’ve seen mods like brown buttons and blue buttons, I wonder how I could make such mods with any color I want. Basically, how to change the color but keep the gradient/texture.
I don’t have PS experience but is it something like this?
@threedtsAoE Could you teach me how you made this nice green age-up bar? 
Hey. I just changed the hue or a similar color setting for loadingbar_full.png in paint.net or GIMP, can’t remember exactly. Or you mean how did I make the mod?
Yes this is what I want Trying GIMP now but I don’t see an option to directly change hue.
Did you use the Recolor tool in paint.net? I tried it but can get nowhere close 
Is it a one-click thing or involving fine tuning the parameters?
I succeeded with GIMP by increasing the hue by 100 
Oh, nice. Btw from what I recall it was paintnet that I used and just went to Adjustments > Hue/Saturation, then just moved the Hue bar 
good luck with the modding