Selection Tool To Select One Colour Everywhere

[Jeff282]

We have all had the problem of selecting a sky when most of the sky can be seen through gaps in the leaves and branches of a tree. It can take ages to accurately select every tiny gap to complete the selection of the sky. If we miss a few tiny gaps the result looks awful. Other programs, GIMP is an example, have selection tools which can select all areas of the sky, including those pesky gaps, with just one click. Of course it may be necessary to adjust the settings for that tool to capture clouds as well as the blue sky. If other programs can do it how about such  a tool for Affinity Photo?  (If you are not familiar with GIMP I'm talking about the 'Select by Color Tool'.)

[walt.farrell]

Have you tried the Flood Select tool with the Contiguous option turned off?