Lol, forgot to add "Update" to the title.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

2026-08-13

[Fixed Bugs]

• [Pen Tablet Control]: The layer selection and move action(Shift+Ctrl+Drag) now performs only layer selection.
• [Pen Tablet Control]: Right-click functionality fails on devices that require pressing the side switch while pressing the pen tip. (Apologies; this was a regression introduced in the 2026-08-05 version.)
• [Text Layer]: History operations and saving fail to execute correctly when [Spc.] or [Lift] values are negative.
• [Eyedropper]: Shortcut assignments for [Pick Color from Merged Image] and [Pick Color from Current layer] do not work correctly.
• [Eyedropper]: The eyedropper function within selection brushes fails to work correctly when a layer mask is selected. (This was another regression introduced in the 2026-08-06 version. I apologize for the oversight...)
• [Window Control]: Changing [Scaling of User Interface] while the window is maximized causes the window to resize but prevents the UI elements from being repositioned.
• [Window Control]: The layout becomes distorted if the "Scale and layout" setting (text, apps, and other items) in Windows display settings is not set to a multiple of 50%.

[Changes]

• [Keyboard Operation]: Canceled applying [Suppression of Accidental Operation] to [Lasso], [Lasso Fill], [Magic Wand], and [Bucket] tools.

===

Known Issues:

Bugs reported as of 2026-08-13, that have not yet been fixed. (Please note that there may be some omissions.)

In some cases, editing a text layer can cause excessive memory consumption, eventually leading to an "out of memory" error.
We have been unable to reproduce this issue, and the cause remains unknown. Based on the information available so far, it appears to occur with specific fonts. We would greatly appreciate it if you could provide any information regarding the conditions under which this occurs.

Character positioning is incorrect in vertical writing with certain fonts.
We plan to include the fix as part of the CFF font implementation work.

Parts of an image may go missing unnoticed while editing.
Work recovery may fail midway through the process.
Layers may appear blank when loading a saved canvas.
At this point, we suspect it may have been a side effect of another issue.

An issue classified as a current specification rather than a bug.

CFF font does not work
At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history\_v2.txt

2026-08-11

[Fixed Bugs]

• [File Viewer]: Files with uppercase extensions do not appear in the file list.

• [View]: A warning about drawing on an invisible layer appears repeatedly when dragging with a pen. (Apologies; this bug was introduced in the 2026-08-05 version.)

• [Merge Layers]: Disabling the paper texture setting is not correctly reflected on the control panel.

• [Magic Wand type tools]: Multiple "Internal state inconsistency" error pop-ups appear under certain conditions.

• [Lasso type tools]: The opacity of the reference color in "Similar Color" mode affects the selection in "Transparent Area" mode.

• [Text tool]: Dragging to adjust font size or line gap values does not work correctly when the printing resolution is not 72 ppi.

• [Effect Pen/Scatter tools]: An access violation occurs when used on a grayscale canvas.

• [Effect Pen/Scatter tools]: The drawing color is not applied correctly on a grayscale canvas.

• [Transformation]: The selection region on blank space is not erased when starting transformation. (Apologies; this bug was introduced in the 2026-08-05 version.)

• [Asset Manager]: Thumbnails for registered images may not display correctly after registering multiple images for a scatter shape.

===

Known Bugs:

Bugs reported as of 2026-08-11, that have not yet been fixed. (Please note that there may be some omissions.)

In some cases, editing a text layer can cause excessive memory consumption, eventually leading to an "out of memory" error.
We have been unable to reproduce this issue, and the cause remains unknown. Based on the information available so far, it appears to occur with specific fonts. We would greatly appreciate it if you could provide any information regarding the conditions under which this occurs.

Character positioning is incorrect in vertical writing with certain fonts.
We plan to include the fix as part of the CFF font implementation work.

Parts of an image may go missing unnoticed while editing.
Work recovery may fail midway through the process.
Layers may appear blank when loading a saved canvas.
At this point, we suspect it may have been a side effect of another issue.

An issue classified as a current specification rather than a bug.

CFF font does not work
At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

2026-08-06

EDIT: August 6th, 2026, not August 8th, 2026 in the title. Sorry about that!

[Fixed Bugs]

• [Floater]: Moving a floater with a paper texture applied caused numerous access violations.
• [Eyedropper]: When dragging with the right button while hovering with a pen, [Pick Color in Dragging] setting is not applied.
• [Pixel Art Pen]: [Target for Dropper] in Eyedropper tool takes precedence over [Layer ARGB] mode for [Dropper].

[Changes]

• [Eyedropper]: Changed to update the brush preview while dragging.

Known Bugs:

Bugs reported as of 2026-08-06, that have not yet been fixed. (Please note that there may be some omissions.)

Character positioning is incorrect in vertical writing with certain fonts.

Parts of an image may go missing unnoticed while editing.
Work recovery may fail midway through the process.
Layers may appear blank when loading a saved canvas.
We have been unable to reproduce this bug in our environment and are currently gathering information.

An issue classified as a current specification rather than a bug.

CFF font does not work
At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

[Fixed Bugs]

• [PNG File]: Attempting to open a non-existent PNG file causes an access violation, after which the application begins to malfunction.
• [Text Layer]: Undo or Redo the duplication of a text layer may fail depending on the caret position.
• [Stroke Stabilizer]: Stabilization is not applied if a drag operation is started while holding a modifier key within the time limit specified in [Options] > [Keyboard Operation] > [Suppression of Accidental Operation].
• [Pen Tablet Control]: Drag operations no longer accept buffered input when using WinTab API mode. (It seems that the generation order between mouse messages and post messages was changed in some version of Windows.)
• [Brush Tools]: If a brush texture name contains a "%" character, the name is saved to the tool settings with the "%" removed. (The next time select the tool, the brush texture is not selected correctly.)
• [Effect Pen / Scatter Tool]: Drawing on a layer mask does not produce the correct color.
• [Scatter Tool]: Nothing is drawn when the shape is set to [Standard Circle]. (Apologies; this bug was introduced in the 2026-07-29 version.)
• [Scatter Shape / Scatter Tool]: The angle is incorrect when the [Angle] setting is -129 degrees or lower, or +128 degrees or higher.
• [Magic Wand Tool / Bucket Tool]: The application may freeze when selecting or filling a loop-shaped region.
• [Transformation]: Disabling the ruler is not reflected when using grid rulers or symmetry rulers.
• [Transformation]: Confirming or canceling the transformation of a floater with layer effects applied causes the effect to be lost or results in an access violation.

[Changes]

• [Magic Wand Tool / Bucket Tool]: Reverted the change intended to reduce unfilled regions when handling line art with soft edges.

==========================

Known Issues:

Bugs reported as of 2026-08-05, that have not yet been fixed. (Please note that there may be some omissions.)

Character positioning is incorrect in vertical writing with certain fonts.

Parts of an image may go missing unnoticed while editing.
Work recovery may fail midway through the process.
Layers may appear blank when loading a saved canvas.
We have been unable to reproduce this bug in our environment and are currently gathering information.

An issue classified as a current specification rather than a bug.

CFF font does not work
At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/history\_v2.txt

https://www.systemax.jp/en/sai/devdept.html

-------------------------------------------------------------------------------------------------------------------------------------------- 2026-07-30

[Fixed Bugs]

• [System File Dialog]: Saving after removing the file extension in the filename field always results in the SAI2 format.

• [Brush Tools]: Inverting the values of the blot map and brush texture does not result in the correct density when drawing.

• [Magic Wand Tool / Bucket Tool]: Area detection fails to function correctly. (Apologies; this bug was introduced in the 2026-07-29 version.)

• [Options Dialog]: HSV/HSL sliders do not update correctly when the numerical display range for HSV/HSL is changed.

---

Known Issues as of 7-30-2026:

Bugs reported as of 2026-07-30, that have not yet been fixed.
(Please note that there may be some omissions.)

• Character positioning is incorrect in vertical writing with certain fonts.
• Parts of an image may go missing unnoticed while editing.
• Work recovery may fail midway through the process.
• Layers may appear blank when loading a saved canvas. We have been unable to reproduce this bug in our environment and are currently gathering information.

An issue classified as a current specification rather than a bug.

• CFF font does not work At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/history_v2.txt

https://www.systemax.jp/en/sai/devdept.html

-------------------------------------------------------------------------------------------------------------------------------------------- 2026-07-29

• [Command-line Arguments]: The feature that sends command-line arguments to an existing instance when the program is launched doubly is not working.

• [PSD/PSB Saving]: Layer masks are saved with a horizontal shift (offset to the left or right).

• [View]: Access violations could occur for unknown reasons. (The cause remains unknown as the issue could not be reproduced, but measures have been taken to prevent access violations.)

• [Scratchpad]: Cannot paint with a pen tablet.

• [Binary Halftone]: The layer image will disappear when duplicating a layer with halftone settings applied.

• [Layer Moving]: When moved a layer mask for a layer folder that containing child layers, the operation cannot be undone.

• [Perspective Ruler / Perspective Grid / Paper Grid]: Undo/Redo operations were reverting the enabled state of vanishing points and grid snapping settings.

• [Magic Wand Tool / Bucket Tool]: When [Dilation Width] is specified, border-like artifacts will appear in the area slightly surrounding the selection or fill.

• [Magic Wand Tool / Bucket Tool]: When [Selection Mode] is [Transparent Area] and anti-aliasing is turned off, the selection or fill will slightly encroach upon opaque areas.

• [Magic Wand Tool]: [Operation] setting was not being applied.

• [Bucket Tool]: When filling with a transparent color using a different layer as the selection source, existing transparent regions are not detected in the region selection.

• [Brush Tools]: Images assigned to Setting 3 for scattering form fails to render.

• [Curve / Polyline Tools]: The brush circle was not displaying.

• [Color Adjustment Filters]: Yet again, the filters does not work for layer folders. (Apologies; this regression was introduced in the fix from the 2026-07-27 version.)

---

Known Issues as 07-27-26:

• Character positioning is incorrect in vertical writing with certain fonts.
• Parts of an image may go missing unnoticed while editing.
• Work recovery may fail midway through the process.
• Layers may appear blank when loading a saved canvas. We have been unable to reproduce this bug in our environment and are currently gathering information.

An issue classified as a current specification rather than a bug.

• CFF font does not work At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

----

2026-07-12

[Fixed Bugs]

• [File Viewer]: Saving sometimes fails even after pressing the save button.

• [Layer Mask]: Watercolor tool painting is incorrect.

• [View]: The drag and drop copy operation from the layer list to an inactive view is not implemented.

• [Lasso type tools]: Program freezes when [Selection Mode] is set to [Polygon] or [Polygon + Freeform].

• [Lasso Fill]: Selection regions are not applied.

• [Binary Brushes]: When [Pick Color in Dragging] is enabled, dragging with the eyedropper causes rapid toggling between the foreground color and transparent.

• [Brush Texture]: The texture density is incorrect is [Invert] is turned on.

[Changes]

• [Lasso Selection Tool]: Changed the selection operation without modifier keys from "replace selection" to "add selection."

• [Brush Tool]: Adjusted default parameters to make it easier to achieve density even with pen pressure. (When I used it with the default settings for the first time in a while, it felt like it might give me tendonitis!)

• [Bucket Tool]: Added [Pass Through Selections] that revert behavior to 2026-07-02b versions or earlier.

----

Known Issues:

Bugs reported as of 2026-07-12, that have not yet been fixed.
(Please note that there may be some omissions.)

• Unable to load the monitor ICC profile on some environment. (an error pops up when creating a canvas) It appears there are issues such as the system failing to correctly locate the ICC profile or being unable to load the profile itself. We are currently considering how best to address this.

An issue classified as a current specification rather than a bug.

• CFF font does not work At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

https://www.systemax.jp/en/sai/history_v2.txt

https://www.systemax.jp/en/sai/devdept.html

---

2026-07-08

[Fixed Bugs]

• [File Menu]: The canvas editing state(i.e. whether a save operation was possible)) does not relect to [Save] command.
• [File Menu]: The system file dialog is not used even if [Always Use FileViewer] is turned off.
• [Clipboard]: Copying or cutting a selected layer folder consumed excessive memory, resulting in an error.
• [Layer Paper]: Settings were not applied to layer folders.
• [Shape Layer]: Shapes became transparent when loading a canvas created in a version prior to the major renovation.
• [Text Layer]: Malfunctions occurred—such as access violations—when an invalid font was used.
• [Lasso Tool]: Dragging from within the selected area always resulted in deselecting the area, even when holding Shift or Alt.
• [Magic Wand Tool]: The mouse cursor differed from the one used prior to the major overhaul.
• [Text Tool]: Some fonts appeared with blank names in the font list. (Support for CFF fonts is not currently implemented, causing their names to appear blank. As a temporary measure, these are now displayed in red and treated as invalid fonts.)
• [Brush Tools]: The end of stroke is interupted when using the Ver.1 style stabilizer.
• [Shape Tool]: Creating a shape resulted in the creation of 31 copies of the same layer. (This was a regression caused by the fix for the "light-touch drag" issue in the 2026-07-06 version.)
• [Brush Tools]: The brush circle did not redraw when changing the brush size via keyboard shortcuts.
• [Transformation]: Adjusting the perspective slider triggered numerous access violation errors. (Note to self: Exceptions occurring within a timer procedure specified by SetTimer() do not cause the application to terminate.)
• [Layer Fill/Erase]: Could not be applied to layer folders.
• [Merge Layers]: Adjustments to layer opacity or special effects were not reflected in the layer list items.
• [Change Canvas Resolution]: There are several bugs, such as access violations and the occurrence of artifacts.
• [Color Adjustment Filters]: Cannot be applied to layer folders.
• [Recently Files]: Memory leak occurs if a non-existent path is present.

---

Current Known Issues:

Bugs reported as of 2026-07-08, that have not yet been fixed. (Please note that there may be some omissions.)

Shortcut keys do not work correctly in floating views.

Opening a canvas containing text layers causes memory starvation.
(I'm not yet sure if the fix in the 2026-07-08 version resolved the issue, so I'll wait and see for a bit.)

Unable to load the monitor ICC profile on some environment. (an error pops up when creating a canvas)
(Now investigating.)

---

------------- ■ Important Notes (Updated 2026-07-08)

The following data created in this major update version (or later) are incompatible in older versions: ・Recovery data for works ・Shortcut key settings (saved as separate setting data from that of older versions)

Starting with this major update version, the supported OS is Windows Vista or later, and a CPU with SSE 4.1 support is required.

https://www.systemax.jp/en/sai/history_v2.txt

https://www.systemax.jp/en/sai/devdept.html

---

2026-07-06

[Fixed Bugs]:

- [Tools]: Repeated dragging with a very light touch sometimes fail to detect drag operations.

- [PSD/PSB Saving]: Saving a canvas containing layer masks as a PSD/PSB file resulted in an invalid file.

- [Image Save Dialog]: An access violation occurs when selecting [Original Image] for a canvas where the height exceeded the width.

- [View]: The Eyedropper tool was not functioning on inactive views.

- [Layer Paper]: The tonal values ​​of the texture were inverted.
(Water fringe functions had been incorrectly applied.)

- [Layer Mask]: [Erase Layer] and [Fill] are always applied to the owner layer of the layer mask.

- [Lasso Selection Tool / Lasso Fill Tool]: Anti-aliasing was being applied even when the setting was turned off.

- [Lasso Fill Tool]: The application freezes when filling a enclosed area with transparent.

- [Effect Pen]: The tool will paint with invalid color values for grayscale mode.

- [Inking Layer: Change Color Tool]: Color changes were not being applied to strokes on a linework layer.

- [Transformation]: An access violation occurs when confirmed transformation if [Water Fringe] was specified.

- [Change Canvas Resolution]: Access violations occur with depending on the combination of original and new sizes.

- [Options Dialog]: [Minimum Pressure] in [Pen Tablet] page does not work for [Use WinTab API] and [Use Windows API].

- [Options Dialog]: [The Store Location of History/Recovery Data and Image File Thumbnails] in [Environment] page is not applied.

[Others]
Added a mention about the limit on the number of layers into [Other Changes] in 2026-07-02 section in this text.2026-07-06

[Fixed Bugs]:

- [Tools]: Repeated dragging with a very light touch sometimes fail to detect drag operations.

- [PSD/PSB Saving]: Saving a canvas containing layer masks as a PSD/PSB file resulted in an invalid file.

- [Image Save Dialog]: An access violation occurs when selecting [Original Image] for a canvas where the height exceeded the width.

- [View]: The Eyedropper tool was not functioning on inactive views.

- [Layer Paper]: The tonal values ​​of the texture were inverted.
(Water fringe functions had been incorrectly applied.)

- [Layer Mask]: [Erase Layer] and [Fill] are always applied to the owner layer of the layer mask.

- [Lasso Selection Tool / Lasso Fill Tool]: Anti-aliasing was being applied even when the setting was turned off.

- [Lasso Fill Tool]: The application freezes when filling a enclosed area with transparent.

- [Effect Pen]: The tool will paint with invalid color values for grayscale mode.

- [Inking Layer: Change Color Tool]: Color changes were not being applied to strokes on a linework layer.

- [Transformation]: An access violation occurs when confirmed transformation if [Water Fringe] was specified.

- [Change Canvas Resolution]: Access violations occur with depending on the combination of original and new sizes.

- [Options Dialog]: [Minimum Pressure] in [Pen Tablet] page does not work for [Use WinTab API] and [Use Windows API].

- [Options Dialog]: [The Store Location of History/Recovery Data and Image File Thumbnails] in [Environment] page is not applied.

[Others]
Added a mention about the limit on the number of layers into [Other Changes] in 2026-07-02 section in this text. (Basicaally, the layer limit is gone!)

---

Known issues:

Bugs reported as of 2026-07-06, that have not yet been fixed.
Opening a canvas containing text layers causes memory starvation. (The cause is currently unknown, and the issue has not yet been reproduced.)

Unable to load the monitor ICC profile on some environment. (an error pops up when creating a canvas) (Now investigating.)

Some fonts appear as blank spaces in the font list of the Text tool. (Now investigating.)

Does not switch to the system file dialog even if turned off "Always use file viewer" in the [File] menu. (I apologize, I forgot to create it. I will create it after fixing the high-priority bugs.)

Any plans as for when the next collab will be hosted, if there will be one? I didn't know if it was going to be this month and members will have six months to complete it, or if it will be hosted next month to where the event gets carried over to January to avoid the holiday rush.

Or if the collab will be posted later in the year with a smaller grace period (three months, couple of weeks, etc.)?

I was just curious. I'd like to give myself enough time to work on my entry (and if I procrastinate, that's on me lol).

Many months ago, when this subreddit achieved 50 members, I created a poll to see where the members stand as to who they like better.

https://www.reddit.com/r/BrightonAndTwila/comments/1m8cxq2/which\_one\_do\_you\_like\_better/

This time, however, I am only giving two options: Brighton or Twila.

There won’t be a third option this time around where you can vote for both. I meant to host this poll back when the subreddit hit 100 members or 12 months duration, whichever came first.

I’m pretty curious to see how the voting will go, and I wonder if there is some sort of a ratio of fans between the two.

Please keep the discussion civil.

Of course, commenting and voting is entirely optional. You don’t have to if you don’t want to. Of course, if this poll ends up being a failure, I’ll revert back to where there are three options the next time I decide to make this poll.

This poll will last seven days.

View Poll