This request is for either being able to assign all tool hotkeys yourself or at least simpler selection shortcuts. I'm assuming the former is a lot more work than the latter so I'll focus my feedback on simplifying some shortcuts.
Personally, for sprite work my most used selection tools are Magic Wand & Lasso select in that order. Currently, flipping between those tools requires me to click an ungodly amount of S keys (exaggerating a bit here but I do actually suffer from chronic pain and it really has caused some issues for me personally). I can understand the logic of having some tools require double-clicks of a specific button and I think the [S]x1 for the Rectangle Selection followed by an [S]x2 for the Elliptical Selection would be perfectly reasonable and even fairly intuitive. But having Lasso in the middle of the two shaped selections breaks that intuitive link and adding the Magic Wand at the end to the same hotkey makes it even worse. With the amount of repetitions you need in order to actually reach the desired tool, it starts to make the process more inconvenient than outright moving the mouse and manually clicking – which defeats the purpose of hotkeys.
On a slightly different note, many standard laptop keyboards (or even compact / bluetooth ones) do not have the [Delete] key readily accessible. Instead there's [Backspace], which is used in most apps for the same purpose. The Fill tool currently has two hotkeys: the intuitive left click and the superfluous [Backspace]. I believe the Fill tool would be fine with just the single left click or, if a secondary option were truly desired, having something along the lines of [Shift]+[F] (to fill with the secondary color simply preface the whole thing with [X]). That would then open [Backspace] to serve as the Erase tool's hotkey, with the ability to keep [Delete] as an alternative for those who have it stored in their muscle memory at this point.
Sincerely,
A 25-year-old pixel artist with the crippling joint problems of a 75-year-old grandma 🙃
( Even if none of these points are considered as good alternatives for the current system, I still want to thank the team for making this incredible resource ) TL;DR - My Proposal:
Swap Lasso & Elliptical Selection spots on the UI
Rectangular Selection keeps the hotkey [S]x1
Elliptical Selection is reassigned the hotkey [S]x2
Magic Wand is assigned a unique hotkey – [W]
Lasso is assigned a unique hotkey – [Q]
[L] would be more intuitive but that's already assigned to the Clone Stamp, so I picked [Q] arbitrarily because it was unused and next to [W]
Erase is assigned the intuitive/more common hotkey – [Backspace]
The [Delete] hotkey would stay as an alternative shortcut
Fill gets confined to either just a left click once the tool has been selected or changed to a more intuitive hotkey – [Shift]+[F]
Filling with the alternate color could still be done with a right click but it does not merit a hotkey, in my opinion; at best it can be listed as [X] + [Shift]+[F]
