This folder contains a sample toolbar buttons icon set. These icons are not intended for real replacement of built-in ones. They are just a demo of possibility of customization.
(Actually, most of the icons are just copies of built-in ones, except Open Local Registry and Remote Registry which are copies of Windows 10 built-in icons.)

To make Registry Finder use icons from this folder, just rename it to "res".

If someone can draw or find existing nice icons that other people may want to use, please send them to me and I will share them with other users.
(Please send a whole set, not individual icons.)

Icons may contain several images of different size. It is up to you which sizes to add to the icon set. Please bear in mind the following.
Registry Finder selects icon size based on current Windows display settings. Specifically, the scale. (In Windows 10, right-click on the desktop, select Display settings. See the Scale and Layout section.)
When the scale is 100%, Registry Finder uses 16x16 icons. Increasing the scale increases the icon size accordingly. E.g. if the scale is 200%, the icon size is 32x32.
If the icon set does not have the size corresponding to the current scale, the closest smaller size is used instead. Say, the icon set has the following sizes: 16x16, 32x32, 48x48.
If the scale is 250%, corresponding size is 40x40. Then Registry Finder will use 32x32 icons.
Also, in the future versions I'm planning to add an ability to select from two logical sizes: small an big. On 100% scale, small is 16x16, big is 24x24.
So, in order your icon set can be used on wide variety of display settings, I recommend to add at least these sizes:
100%: 16x16, 24x24
125%: 20x20, 24x24
150%: 24x24, 32x32
200%: 32x32, 48x48
300%: 48x48, 72x72
400%: 64x64, 96x96
