I am asking merely about this Hue/Saturation method (described here as Method 2) — NOT the Layer method (described here as Add a Layer Mask). I know the Hue/Saturation method is worse, because Hue/Saturation doesn't let you adjust Lightness independently. If you do, you wash out the shadows.
Question 1. I picked blue, but why isn't my black halter turning blue?
I selected the halter correctly, because when I slide Hue/Saturation to the far right, the black halter changes color to dark green!
Questions 2 to 5.
What's the purpose of "Color"? If I must adjust "Hue", then why's Color on top? Shouldn't "Hue" be on top?
What's the purpose of "Colorize"? What does "Colorize" do? It shouldn't be ticked, correct?
What are these 2 color bars? What's their purpose?
Rather than clicking on "100%" and typing new percentage — does Photoshop come with a plus and minus option beside the 100%, like other programs? Clicking plus or minus with my mouse is faster for me.
I know I can switch to the Zoom tool, or hold down my Alt button. I am not asking about these 2 options.